Present tenses
(present simple,present progressive/continuous,present perfect,preset perfect progressive/continuous)
Past tenses
(past simple,past progressive/continuous,past perfect,past perfect progressive/continuous)
Future tenses
(future simple,future progressive/continuous,future perfect,future perfect progressive/continuous)
Conditionals
1.simple conditional
2.conditional perfect
3.conditional progressive
4.conditional perfect progressive
Conditionals就是中文里所谓的“虚拟语气”