who

Hi, Duaiekan,

@duaiekan posted:

I don't know who to drive the car.

In nonfinite embedded questions, the infinitive needs to refer to the subject:

- I don't know how to drive the car. ("I" is the potential driver.)
- I don't know when to drive the car. (Idem)
- I don't know which car to drive. (Idem)
- I don't know who to drive in my car. (Idem)

@Gustavo, Co-Moderator posted:

Hi, Duaiekan,

In nonfinite embedded questions, the infinitive needs to refer to the subject:

- I don't know how to drive the car. ("I" is the potential driver.)
- I don't know when to drive the car. (Idem)
- I don't know which car to drive. (Idem)
- I don't know who to drive in my car. (Idem)

Thank you for your reply.  I have a following question.

In the sentence , " I don't know who to drive in my car,"   is 'I' the potential driver?

@duaiekan posted:

In the sentence , " I don't know who to drive in my car,"   is 'I' the potential driver?

Yes. In that sentence "who" is the direct object (i.e. the person to be driven by the speaker). "I" is the potential driver and "who" is a potential passenger.

@Gustavo, Co-Moderator posted:

Yes. In that sentence "who" is the direct object (i.e. the person to be driven by the speaker). "I" is the potential driver and "who" is a potential passenger.

Thank you . Do you mean that ' who' is the object of 'drive'?

Actually, what I try to say is ' who will/should drive the car '

I have another question.

What about the sentence?

I don't know who to use the car.

Is this sentence correct? and  Is it the same as the following sentence?

I don't know who should use the car.

@duaiekan posted:

Do you mean that ' who' is the object of 'drive'?

Actually, what I try to say is ' who will/should drive the car '

In the sentence:

- I don't know who to drive in my car.

"who" refers to the person to be driven in the speaker's car, and is therefore the object of "to drive," just as "John" is the object of "will drive" in the sentence below:

- I just decided I will drive John in my car.

@duaiekan posted:

I don't know who to use the car.

Is this sentence correct?

No, that sentence is not correct.