Standard subject-verb combinations
In the present tense, verbs agree with their subjects in number (singular or plural) and in person (first, second, or third):
|
I walk |
we walk |
|
you sit |
you sit |
|
he, she, it stands |
they stand |
The present-tense ending -s (or -es) is used on a verb if its subject is third-person singular (she stands); otherwise the verb takes no ending (I walk).
The subject-verb agreement chart 
shows the present-tense forms of the typical verbs love and try and the
The chart also shows both the present and the past forms of the irregular verb be. Unlike any other verb, be has special forms in both the present and the past tense.
Present-tense and past-tense forms of be
When to use the -s (or -es) form of a present-tense verb
Present-tense forms of do (including negative forms)
Exercises:
Related topic: