I’ve lost my keys.
The keys are missing now; the present result matters more than the exact time.
Satzbausteine
Lies den Satz in Sinneinheiten, nicht Wort für Wort.
Choose present perfect when the present connection matters and past simple when the finished time matters.
NOW
│
PRESENT PERFECT │ a bridge to now
past event ───────┘ result / experience / still true
I’ve lost my keys.
Have you ever worked abroad?
PAST SIMPLE a pin in finished time
past event ●──────── yesterday / in March / ago / when?
I lost my keys yesterday.
I saw it in March.
When did you arrive?
Use present perfect for a past event linked to now; use past simple when you point to a finished past time.
I’ve lost my keys.
The keys are missing now; the present result matters more than the exact time.
Lies den Satz in Sinneinheiten, nicht Wort für Wort.
I lost my keys yesterday.
Yesterday is a finished time, so the past simple is natural.
Lies den Satz in Sinneinheiten, nicht Wort für Wort.
She has broken her arm.
The broken arm affects the present, so the present perfect fits.
Lies den Satz in Sinneinheiten, nicht Wort für Wort.
She broke her arm last winter.
Last winter is finished, so the past simple is used.
Lies den Satz in Sinneinheiten, nicht Wort für Wort.
I saw it in March.
The exact time is important, so use the past simple.
Lies den Satz in Sinneinheiten, nicht Wort für Wort.
Have you sent the email?
The speaker wants to know whether the email is sent now.
Lies den Satz in Sinneinheiten, nicht Wort für Wort.
I haven’t sent it yet.
Yet keeps the time window open, so present perfect is natural.
Lies den Satz in Sinneinheiten, nicht Wort für Wort.
Did you send the email?
This asks whether the action happened, often in a finished situation or time.
Lies den Satz in Sinneinheiten, nicht Wort für Wort.
I didn’t send it yesterday.
Yesterday is finished, so past simple negative is required.
Lies den Satz in Sinneinheiten, nicht Wort für Wort.
I’ve left my phone at home.
The focus is that the speaker does not have the phone now.
Lies den Satz in Sinneinheiten, nicht Wort für Wort.
I left my phone at home this morning.
The sentence focuses on when the action happened.
Lies den Satz in Sinneinheiten, nicht Wort für Wort.
Have you ever worked abroad?
Ever asks about any time in the person’s life before now.
Lies den Satz in Sinneinheiten, nicht Wort für Wort.
We haven’t had lunch yet.
Yet shows that the time window continues up to now.
Lies den Satz in Sinneinheiten, nicht Wort für Wort.
He called two days ago.
Ago normally goes with the past simple, not the present perfect.
Lies den Satz in Sinneinheiten, nicht Wort für Wort.
I’ve had three meetings today.
The speaker is inside the same day and counts experience up to now.
Lies den Satz in Sinneinheiten, nicht Wort für Wort.
I’ve lived here for three years.
The speaker still lives here.
Lies den Satz in Sinneinheiten, nicht Wort für Wort.
I lived there for three years.
The speaker no longer lives there, or is discussing a completed period.
Lies den Satz in Sinneinheiten, nicht Wort für Wort.
I have seen him yesterday.
A finished-time word like yesterday cannot normally be used with the present perfect.
I saw him yesterday.
Use past simple with yesterday.
Lies den Satz in Sinneinheiten, nicht Wort für Wort.
When did you arrive?
For a completed arrival, use past simple after when.
Lies den Satz in Sinneinheiten, nicht Wort für Wort.
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