Actor / Source
Who or what starts the event?
Ý nghĩa
The participant that acts, causes, initiates, controls, or is presented as the source of an event.
Cách nhận biết
Ask who is doing, causing, or starting the event.
Ví dụ
I|Peter|the dog|the machine|the wind
the teacher explains|the wind opens
The dog bit the postman.
Visual guide
ACTOR / SOURCE who starts the event? [the dog] -> bit -> postman [the wind] -> opens [the teacher] -> explains = doer/causer/source
Actor clues may differ order: [dog] bit postman case: [dog-NOM/ERG] agreement: dog -> verb pronoun form: I / me topic: [dog-TOP] voice: by [dog] role = event starter
Góc nhìn theo ngôn ngữ
Trong ngôn ngữ mẹ đẻ của Bạn
Actors usually come before the verb in SVO order, but can be omitted or backgrounded when context is clear.
Lan mở cửa.
Lan open door
Trong ngôn ngữ Bạn đang học
In basic English clauses, the actor is usually before the verb and can trigger subject-verb agreement.
She opened the door.
she = the actor/source
Learners from flexible word-order languages may move the actor too freely or omit required subjects.
Same block, different coding
Both languages use this block strongly, but they signal it differently. Focus on form changes, not only meaning.