who / whom (when are these interchangeable?)

[alex_genius_20]

Hello,
I have a problem with the relative pronouns "who and whom"
Once, our teacher told us that we can use "whom" instead of "who" but we can not use "who" instead of "whom"
Is she right?

I mean:

The person who phoned me last night is my teacher. (Can we also put "whom" instead of "who"?)

The person whom I phoned last night is my teacher. (Can we also put "who" instead of "whom"?)

Thanks

 

[Chicken Sandwich]

Have you looked at previous threads on who/whom? This topic has been covered ad nauseam on many different forums and in many different articles. Have a look here and try to answer your own questions.

 

[alex_genius_20]

Have you looked at previous threads on who/whom? This topic has been covered ad nauseum on many different forums and in many different articles. Have a look here and try to answer your own questions.

ِDear Chicken thanks for answering but we nonnative English speakers usually expect to get the immediate or first response first from native English speakers. Because we may sometimes be in hurry and look for an immediate response. I appreciate your response.
My best wishes to you.;-)

 

[Boris Tatarenko]

Hello.

I'm not a teacher nor a native speaker.

I know exactly that your sentences are correct.

Also I'm sure you can't replace "who" with "whom" in the first one.
but I'm not sure about the second sentence. I heard many times when people said so.

P.S I'd replace "is" with "was"

Boris.

 

[bhaisahab]

ِDear Chicken thanks for answering but we nonnative English speakers usually expect to get the immediate or first response first from native English speakers. Because we may sometimes be in hurry and look for an immediate response. I appreciate your response.
My best wishes to you.;-)

My advice to you is:
1. Don't be in a hurry and look for an immediate response. We are not at your beck and call.
2. Take Chicken Sandwich's advice. Look at the link he kindly provided for you and do some work for yourself.

 

[MikeNewYork]

Hello.

I'm not a teacher nor a native speaker.

I know exactly that your sentences are correct.

Also I'm sure you can't replace "who" with "whom" in the first one.
but I'm not sure about the second sentence. I heard many times when people said so.

P.S I'd replace "is" with "was"

Boris.

I would not replace "is" with "was" if the person is still his teacher. "Was" suggests that the person used to be his teacher.

 

[alex_genius_20]

We are not at your beck and call.

Sure you are not.
Ok, thanks for the advice.

 

[Tdol]

The person who phoned me last night is my teacher. (Can we also put "whom" instead of "who"?) No

The person whom I phoned last night is my teacher. (Can we also put "who" instead of "whom"?) Yes

 

[Yiagos]

In some cases are interchangeable in other not. But if you are not sure, it is better to use who. A very good explanation is here on Grammar Monster site.

I am not a teacher.