Required Companion / Valency
What companion does this word require?
Meaning
The required or typical partners of a verb, adjective, noun, or expression: object, preposition, case, clause, infinitive, or complement.
How to spot it
Ask what the word needs after or around it to be complete and natural.
Examples
depend on|listen to|ask for|interested in
wait for someone|good at something|help someone do
She depends on her friends.
Visual guide
some words open slots depend → on + someone listen → to + someone slot filled = natural She depends on her friends.
COMPARE SLOTS English: depend + on + someone Other: depend + case/object Companion type may be: preposition | case object | clause infinitive
Language View
In your language
English verbs, adjectives, and nouns often require specific companions such as objects, prepositions, or infinitives.
depend on someone
on = required companion
In learning language
Many Arabic words require specific complements, prepositions, cases or clause types.
انتظرتُ الحافلةَ.
I waited the bus.
Learners may choose the wrong preposition after verbs or adjectives.
Same block, different coding
Both languages use this block strongly, but they signal it differently. Focus on form changes, not only meaning.