
Re: How do I know which verb form to use?
Need an example. Not sure exactly what you are asking.
To decide the verb used you have to look at the number of nouns taking the action/verb.
For instance, I "was" there. We "were" there.
Joe was there. Joe and I were there.
I jump there. You jump there. Joe jumps there. We jump there. They jump there. Joe jumps alone.
In this case, the Proper noun necessitates the "s."