Why do we sometimes have to say used by and not use by in present time?
like some articles I read on wikipedia?
Last edited by ManSeek; 12-Dec-2011 at 11:20. Reason: Grammar error.
It just says used by. It's like a profile.
ManSeek, we need at least a complete sentence containing 'used by' before we can respond to your question.
Context is always important; labelling is rarely important.
Ok let's say, It is used by, that would be passive right? But on wikipedia it doesn't have the "to be" verb. Is it possible?
Context is always important; labelling is rarely important.
I bet the OP means a sentence like this, "This is a list of songs used by Apple Inc. in commercials, keynote addresses, presentations, and other marketing materials."(From Wikipedia)
NOT A TEACHER
(1) Thanks to Mav's post, I may now understand your question.
(2) "This is a list of songs used by Apple."
(a) This sentence is a shorter way to say:
"This is a list of songs that is used by Apple."
(b) Have you studied the passive yet? In the passive, we always use the past
participle. (use = present; used = past; used = past participle)
(c) We can say "Apple uses this list of songs" or "This list of songs is used by Apple." ("used" = past participle)
(d) Another example:
"I use a red pen" or "A red pen is used by me."
(e) Can you now change this to the passive:
Mona uses a computer.
Answer: A computer is used by Mona.
I understand now. Thanks.