Past Simple Past Perfect Present Perfect Present Simple BEFORE YESTERDAY Past action finished before another past action YESTERDAY Unique past action at a given time BEFORE NOW Undefined past action with present result NOW GENERALLY Facts/Habits/Routines Subject+HAD+Participle Subject+Verb in Past (-ed / or irregular) Subject+HAVE/HAS +Participle Subject + Infinitive(-s) I went to the opera last He has just phoned I usually watch TV in the evening The Earth moves around the Sun I had just finished my PAST BEFORE TOMORROW Future action that will have been completed before a future time TOMORROW Future planned action Subject+WILL/SHALL We will go to a nice restaurant tomorrow -OR- Subject+ WILL HAVE +Participle BE ABOUT TO+INF -immediate future I am about to leave PRESENT FUTURE BEFORE AND AT/DURING A MOMENT YESTERDAY Past action begun before another past action and continuing until that one YESTERDAY AT A MOMENT Action in progress at a definite past time BEFORE AND AT/DURING THE MOMENT Undefined past action that continues up to now NOW AT THE MOMENT Action in progress Subject+HAD BEEN+ING Subject+Was/Were+ING Subject+HAVE BEEN + ING Subject+BE+….ING BEFORE AND AT/DURING A MOMENT TOMORROW Future action in progress happening before a future action/moment TOMORROW AT/DURING A MOMENT Action in progress at a future moment Subject+WILL HAVE BEEN+ING Subject+WILL BE+ING I have been reading for I had been waiting for him Past Perfect Continuous Future Simple **Future Perfect -rare use- Past Continuous Present Perfect Continuous I shall/will be walking at Present Continuous **Future Perfect Continuous - rare use- Future Continuous