Which is the subject?

[smelvanzq]

Good day teachers!
I'm confused in knowing which is the subject in passive voice. I learned that the subject is the doer of the action but I read in an article that in passive voice the subject is the receiver of the action and not the source, is it correct teachers?
Sam kicked the ball. - The subject is Sam
The ball was kicked by Sam. - Which is the subject?
and furthermore could you please correct me which subject should I use when the active voice is changed to passive voice:
I kicked the ball- active
The ball was kicked by I? or me?
Thanks teacher.

 

[Matthew Wai]

'The ball' is the subject in 'The ball was kicked by me', where 'me' is the object of the preposition 'by'.

 

[tedmc]

Good day teachers!
I'm confused [STRIKE]in knowing which is[/STRIKE] about the subject in the passive voice. I learned that the subject is the doer of the action but I read in an article that, in passive voice, the subject is the receiver of the action and not the source. Is it correct, teachers?
Sam kicked the ball. - The subject is Sam
The ball was kicked by Sam. - Which is the subject? "The ball" is the subject and "Sam" is the object of the preposition "by".
And furthermore, could you please correct me on which subject [STRIKE]should[/STRIKE] I should use when the active voice is changed to passive voice:
I kicked the ball- active
The ball was kicked by I? or me? The ball was kicked by me.
Thanks teacher.

 

[Matthew Wai]

could you please correct me on which subject [STRIKE]should[/STRIKE] I should use when the active voice is changed to passive voice

I think the question should be 'could you please tell me whether I should use the subject or object form when the active voice is changed to the passive?'

 

[smelvanzq]

Does it mean teacher that it is not absolute that the subject is the doer of the action? I've been searching the net for article about subject but I could not find it.

 

[smelvanzq]

Thanks teacher. Could you please share a link regarding this matter. Thanks!

 

[Matthew Wai]

http://grammar.ccc.commnet.edu/grammar/passive.htm