Form and rules
How it works
Use the base verb with I/you/we/they: I work, they live.
With he/she/it, usually add -s. Add -es after verbs such as watch, go, do, and finish. Have becomes has.
Use do not/don't with I/you/we/they and does not/doesn't with he/she/it.
Use Do/Does + subject + base verb for questions: Do you work here? Does she drive?
After does or doesn't, use the base verb, not the -s form: She doesn't work, not doesn't works.