- present: denotes an action or state that is happening now.
- past: denotes an action or state that happened before now.
- future: denotes an action or state that will happen after now.
Here is a more detailed list of time-related verbs:
Present tense verbs
- am
- is
- are
- do
- does
- have
- has
- can
- could
- may
- might
- must
- should
- will
- would
Past tense verbs
- was
- were
- did
- had
- could
- might
- must
- should
- would
Future tense verbs
- will
- shall
- won't
- shan't
- may
- might
- must
- should
- could
- would
Other verbs with a time component
- begin
- end
- continue
- start
- stop
- finish
- happen
- occur
- take place
- come
- go
- leave
- arrive
- depart
- return
- grow
- change
- develop
- evolve
- progress
- regress
- decline