The time of a verb's action or state of being, such as present or past.
For a discussion of the relation of tense and aspect, see "Observations," below.
three types of tense:
Present Perfect
Present Progressive
Present Perfect Progressive
Using the Present Perfect
Habitual Present
Historical Present
Literary Present
Past Tense
Past Perfect
Past Progressive
Past Perfect Progressive
Forming the Past Tense
Future
Future Perfect
Future Progressive
Future Perfect Progressive