英文 文法 的問題

He had finished homework before he called me = He called me after he had finished his homework.(past perfect tense and pat tense)

He is finishing his homework when I call him. (present continuous tense and simple present tense)

She has been seen walking past our school = I has seen her walking past our school.

Has been seen = present perfect tense in passive voice
Has seen = present perfect tense in active voice

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she has been seen -----------------------

being seen

What is your question?

He has finished homework.