PRESENT SIMPLE TENSE - every day, often: 
-/-s (do/does, don't/doesn't!) 

PAST CONTINUOUS TENSE - yesterday from 2 to 5: was/were + -ing 

PAST SIMPLE TENSE - yesterday, last week, 3 months ago: -ed/irregular form (did, didn't!) 

PRESENT PERFECT TENSE - just, yet, ever, for, since: have/has + Past Participle 

WILL FUTURE TENSE - tomorrow, next year, in 7 days: shall/will + Infinitive 

GOING TO FUTURE TENSE - intention: 
am/is/are + going to + Infinitive