Verbs of perception: see, hear, watch + object +[bare infinitive/ gerund/ adjective/ past participle/]

Question

Some of the verbs called "verbs of perception or perceptual. However many English language learners would face many problems with using them, me one of them.

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Some of them are being used in such as the following basis (active form): - {see/look/watch/notice/observe/hear} + object + {gerunds/bare infinitive}.

But sometimes, issues are made with passive form. Is the following rule is right or wrong? Correct it if is wrong. - {see/watch, etc.} + object + {adjective/ past participle}

Or:

• {see/watch, etc.} + object (being: optional or required?) + {adjective/ past participle}.

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• I saw a person repairing my car. (Active form)
• I saw a person repair my car. (Active form)
• I saw a car being repaired. (Passive form)
• I saw a car repaired. (Passive form)

• I saw a car be repaired. (Passive form)

• I watched a man solve the problem. (Active form)

• I watched a man solving the problem. (Active form)
• I watched a problem be solved . (Passive form)
• I watched a problem being solved. (Passive form)
• I watched a problem solved. (Passive form)

I am confused about which sentences are wrong and which ones are right?

Could just explain deeply, and elaborate on demonstrations of each one of these examples?

Answer 1

The active voice is speech that places the subject first, followed by a verb, and a place/object. Therefore the correct form is subject -- verb -- object.

The passive voice is speech that places the object first, followed by a verb (tense and a gerund), and the subject. Therefore the correct form is object -- verb -- subject.

None of these sentences are in the passive voice, since I (the subject), always comes first in each of them.

Most of these can be converted from active voice to passive voice:

I saw a person repairing my car. The car was being repaired by someone.

I saw a person repair my car. The car was repaired by someone.

I saw a car being repaired. / I saw a car be repaired. A car was being repaired.

I watched a man solve the problem. The problem was solved by a man.

I watched a man solving the problem. The problem was being solved by a man.

I watched a problem being solved. / I watched a problem be solved. The problem was being solved.

Notice that none of these use I, mainly because I couldn't find a logical incorporation. I suppose you could say (and use as a guideline):

The car was being repaired by someone I was watching.

The problem was solved as I watched.

The sentences I saw a car repaired and I saw a problem solved don't make sense to me because the past participle is just by itself. I would include words to tie it together with everything else:

I saw a car that was repaired.

I saw a car that had been repaired.

I saw a problem that was solved.

I saw a problem that had been solved.

I also think that adding a comma, though strange, is acceptable:

I saw a car, repaired.

I saw a problem, solved.