You are welcome to reply to any of the questions posted in the Ask a Teacher Forum, even if you are not a teacher. In fact, your answers and contributions are most welcome. However, you will need to state clearly in your post that you are not teacher. Please remember, the person whose questions you are answering or whose thread you are contributing ideas to believes the help is coming from a teacher.
Thank you ...Thank you
and I am sorry about my mistakes in fact I am a new member here so I do not have a lot of information about these my mistake anyway I am trying to learn to be good Thank you again.
I think that the substantive "people" can be used in the singular or plural, depending of its meaning.
However I also have my doubts.
(I am a student).