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Gramatika
Clauses and linking B1 B2

Noun clauses with that, wh-, and if/whether

Use that, wh-, and if/whether clauses as subjects, objects, complements, and reported content.

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Vaizdinė schema

Noun clauses: make a whole idea act like a noun

A noun clause = one whole idea used as a noun

Main sentence needs an idea
              │
              ▼
        ┌───────────────┐
        │  IDEA CLAUSE  │
        └───────────────┘
              ▲
   pick the opener by meaning:

that        = a stated idea / fact
I believe that Maya is right.

wh-         = missing information
We don't know where the file is.

if/whether  = yes/no uncertainty
I'm not sure if the door is locked.

Inside the idea clause:
normal statement order, not question order.

Choose the opener by the kind of idea, then keep normal statement order inside the noun clause.

Introduction

A clause can act like a noun

Noun clauses let a whole clause fill a noun position: subject, object, or complement. They often begin with that, a wh-word such as what, where, why, how, who, or when, or if/whether. The clause carries content: a fact, a question answer, or a yes/no choice. I believe that Maya is right. We don't know where the file is. The question is whether we can finish today. In each sentence, the noun clause is the thing believed, unknown, or named by the subject.
Core Gramatika B1 Žodynas A2 Neutral

I believe that Maya is right.

The that-clause is the object of believe.

Sudedamosios dalys

Skaitykite sakinį prasminėmis dalimis, o ne po vieną žodį.

I believe that Maya is right
frame
A whole that-clause is the thing believed.
Įsiminkite kaip visumą
Negative Gramatika B1 Žodynas A2 Neutral

We don't know where the file is.

The wh-clause uses statement word order: where + subject + verb.

Sudedamosios dalys

Skaitykite sakinį prasminėmis dalimis, o ne po vieną žodį.

We don't know where the file is
frame
A wh-clause is the thing that is not known.
Įsiminkite kaip visumą
Core Gramatika B1 Žodynas A2 Neutral

The question is whether we can finish today.

The whether-clause is a complement after be.

Sudedamosios dalys

Skaitykite sakinį prasminėmis dalimis, o ne po vieną žodį.

The question is whether we can finish today
frame
A whether-clause completes the meaning of the subject.
Įsiminkite kaip visumą
Core logic

Pick the opener by the meaning

Choose the opener by the kind of content you mean. Use that for a complete statement: the clause could stand as a statement by itself. Use a wh-word when the larger sentence contains an indirect information question: what, where, why, who, when, how, which. Use if or whether when the idea is a yes/no question or choice. I can't remember what she said. In that sentence, the wh-clause is the thing remembered or not remembered. The opener belongs to the noun clause, but the whole clause works as one unit in the larger sentence.
Negative Gramatika B1 Žodynas A2 Neutral

I can't remember what she said.

What she said is the thing the speaker cannot remember.

Sudedamosios dalys

Skaitykite sakinį prasminėmis dalimis, o ne po vieną žodį.

I can't remember what she said
frame
Use a wh-clause for missing-information content after remember.
Įsiminkite kaip visumą
Core pattern

Main sentence frames

Common frames are verb + noun clause, be + noun clause, noun clause + verb, and adjective + noun clause. With reporting and thinking verbs, the clause is usually the object: She said that the meeting was short. After be, it can complete the subject: My concern is that we are moving too fast. At the beginning, it can be the subject, especially with whether or that in more formal style: Whether they agree depends on the price. After adjectives of knowledge or feeling, it completes the adjective: I'm not sure if the door is locked.
Core Gramatika B1 Žodynas A2 Neutral

She said that the meeting was short.

The that-clause reports the content of what she said.

Sudedamosios dalys

Skaitykite sakinį prasminėmis dalimis, o ne po vieną žodį.

She said that the meeting was short
frame
Use said that to report a statement.
Įsiminkite kaip visumą
Core Gramatika B2 Žodynas B1 Neutral

My concern is that we are moving too fast.

The that-clause explains the concern.

Sudedamosios dalys

Skaitykite sakinį prasminėmis dalimis, o ne po vieną žodį.

My concern is that we are moving too fast
frame
A that-clause can complete a noun after be.
Įsiminkite kaip visumą
Formal Gramatika B2 Žodynas B1 Formal

Whether they agree depends on the price.

Fronted whether-clauses are common in careful or formal style.

Sudedamosios dalys

Skaitykite sakinį prasminėmis dalimis, o ne po vieną žodį.

Whether they agree depends on the price
frame
A whether-clause can act as the subject of the sentence.
Įsiminkite kaip visumą
Negative Gramatika B1 Žodynas A2 Neutral

I'm not sure if the door is locked.

The if-clause completes the adjective sure.

Sudedamosios dalys

Skaitykite sakinį prasminėmis dalimis, o ne po vieną žodį.

I'm not sure if the door is locked
frame
Use if after not sure for yes/no uncertainty.
Įsiminkite kaip visumą
Form variations

Heavy subjects and dummy it

Long subject clauses can stand at the front, but they often feel formal or heavy. That he apologized surprised everyone. In everyday English, a dummy it commonly holds the subject position and the content comes later: It surprised everyone that he apologized. The second pattern is usually smoother for reactions and judgments. The word it does not refer to a thing; it only keeps the sentence easy to process. Front the clause when the content itself is your topic or when you want a formal written tone.
Formal Gramatika B2 Žodynas B1 Formal

That he apologized surprised everyone.

The whole that-clause is the subject of surprised.

Sudedamosios dalys

Skaitykite sakinį prasminėmis dalimis, o ne po vieną žodį.

That he apologized surprised everyone
frame
A that-clause can stand at the front as the subject, often formally.
Įsiminkite kaip visumą
Core Gramatika B2 Žodynas B1 Neutral

It surprised everyone that he apologized.

This is the smoother everyday version of a long subject clause.

Sudedamosios dalys

Skaitykite sakinį prasminėmis dalimis, o ne po vieną žodį.

It surprised everyone that he apologized
frame
Dummy it holds the subject place while the that-clause comes later.
Įsiminkite kaip visumą
Sentence xray

Embedded clauses keep statement order

Inside a noun clause, use statement word order, not question word order. Direct question: Where did Ana put the keys? Noun clause: I know where Ana put the keys. The auxiliary did disappears because the clause is no longer a direct question. For yes/no questions, use if or whether and keep normal subject + verb order. Direct question: Is the train late? Noun clause inside a question: Do you know if the train is late? The main clause can be a question, but the embedded noun clause stays statement-like.
Question Gramatika B1 Žodynas A1 Neutral

Where did Ana put the keys?

This is a direct question, so it uses question word order with did.

Contrast Gramatika B1 Žodynas A1 Neutral

I know where Ana put the keys.

The embedded noun clause does not use did or question inversion.

Sudedamosios dalys

Skaitykite sakinį prasminėmis dalimis, o ne po vieną žodį.

I know where Ana put the keys
frame
After know, the wh-clause uses statement word order.
Įsiminkite kaip visumą
Question Gramatika A2 Žodynas A1 Neutral

Is the train late?

This is a direct yes/no question with be before the subject.

Question Gramatika B1 Žodynas A1 Neutral

Do you know if the train is late?

The main sentence is a question, but the noun clause is the train is late.

Sudedamosios dalys

Skaitykite sakinį prasminėmis dalimis, o ne po vieną žodį.

Do you know if the train is late
frame
Use if plus statement word order inside the embedded yes/no question.
Įsiminkite kaip visumą
Contrast

Noun clause or relative clause?

A noun clause is often confused with a relative clause, especially with that. A noun clause is the content of a verb, noun, adjective, or subject position. A relative clause describes a noun before it. Compare: I heard that Sam hired a new assistant. Here that Sam hired a new assistant is the thing I heard. I met the woman that Sam hired. Here that Sam hired describes the woman; it is not the object of met by itself. Test it: if the clause answers what? after a verb, it is probably a noun clause.
Contrast Gramatika B1 Žodynas A2 Neutral

I heard that Sam hired a new assistant.

This that-clause works as a noun clause, the object of heard.

Sudedamosios dalys

Skaitykite sakinį prasminėmis dalimis, o ne po vieną žodį.

I heard that Sam hired a new assistant
frame
The that-clause is the content heard.
Įsiminkite kaip visumą
Contrast Gramatika B1 Žodynas A2 Neutral

I met the woman that Sam hired.

This is a relative clause, not a noun clause, because it describes woman.

Sudedamosios dalys

Skaitykite sakinį prasminėmis dalimis, o ne po vieną žodį.

the woman that Sam hired
modifier
Here that Sam hired describes which woman.
Įsiminkite kaip visumą
Usage rules

That, if, and whether in real use

That is often optional after very common verbs such as say, think, know, and believe in informal speech, but it is useful in careful writing or when the sentence is long. Use whether rather than if when the clause is the subject, after a preposition, before an infinitive, or with or not. Use if naturally after ask, know, see, and wonder when the meaning is yes/no uncertainty. With decide and discuss before an infinitive, choose whether to, not if to.
Danger zone

Common traps

Two mistakes are especially common. First, learners keep direct-question word order inside the noun clause. Mistake: I asked where was the file. Corrected: I asked where the file was. Second, learners use if before an infinitive after verbs like discuss or decide. Mistake: We discussed if to postpone the trip. Corrected: We discussed whether to postpone the trip. Also notice meaning: a noun clause with if reports uncertainty; a conditional if-clause gives a condition. Do not choose by the word if alone; choose by the job of the clause.
Mistake Gramatika B1 Žodynas A2 Neutral

I asked where was the file.

Do not keep direct-question inversion inside a noun clause.

Corrected Gramatika B1 Žodynas A2 Neutral

I asked where the file was.

The embedded question is a noun clause with statement word order.

Sudedamosios dalys

Skaitykite sakinį prasminėmis dalimis, o ne po vieną žodį.

I asked where the file was
frame
After asked, the wh-clause uses subject before verb.
Įsiminkite kaip visumą
Mistake Gramatika B2 Žodynas B1 Neutral

We discussed if to postpone the trip.

Use whether to, not if to, before an infinitive choice.

Corrected Gramatika B2 Žodynas B1 Neutral

We discussed whether to postpone the trip.

Whether can introduce an infinitive choice; if cannot in this frame.

Sudedamosios dalys

Skaitykite sakinį prasminėmis dalimis, o ne po vieną žodį.

We discussed whether to postpone the trip
frame
Whether to is the correct frame for an infinitive choice after discussed.
Įsiminkite kaip visumą
Summary

The practical test

Use noun clauses to package information as the subject, object, complement, or reported content of a bigger sentence. Pick that for statements, wh- words for missing information, and if/whether for yes/no uncertainty. Keep embedded word order as subject before verb. Use whether rather than if for subjects and infinitive choices, and when a formal choice is meant. Check what the clause is doing: if it is the thing known, said, asked, believed, felt, or decided, it is a noun clause.
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