past progressive (they + walk)
they were walking
present progressive (they + walk)
they are walking
future progressive (they + walk)
they will be walking
past perfect progressive (they + walk)
they had been walking
present perfect progressive (they + walk)
they have been walking
future perfect progressive (they + walk)
they will have been walking
past simple (they + walk)
they walked
present simple (they + walk)
they walk
future simple (they + walk)
they will walk
past perfect (they + walk)
they had walked
present perfect (they + walk)
they have walked
future perfect (they + walk)
they will have walked
What are the 12 verb tenses?
Present Simple, Past simple, Future simple; Present perfect, Past perfect, Future perfect; Present progressive, Past progressive, Future progressive; Present perfect progressive, Past perfect progressive, Future perfect progressive
Nick screams (what tense?)
present simple
Nick screamed (what tense?)
past simple
Nick will scream (what tense?)
future simple
Nick has screamed (what tense?)
present perfect
Nick had screamed (what tense?)
past perfect
Nick will have screamed (what tense?)
future perfect
Nick is screaming (what tense?)
present progressive
Nick was screaming (what tense?)
past progressive
Nick will be screaming (what tense?)
future progressive
Nick has been screaming (what tense?)
present perfect progressive
Nick had been screaming (what tense?)
past perfect progressive
Nick will have been screaming (what tense?)
future perfect progressive
present perfect (formula)
have/has + past participle
past perfect (formula)
had + past participle
future perfect (formula)
will/shall have + past participle
present progressive (formula)
am/is/are + -ING
past progressive (formula)
was/were + -ING
future progressive (formula)
will/shall be + -ING
past simple (formula)
for regular verbs: VERB + ed
present simple (formula)
for regular verbs: VERB (+ s)
future simple (formula)
will/shall + VERB
past perfect progressive (formula)
had + been + -ING
present perfect progressive (formula)
have/has + been + -ING
future perfect progressive (formula)
will/shall have + been + -ING
past perfect progressive (formula)
had + been + -ING
present perfect progressive (formula)
have/has + been + -ING
future perfect progressive (formula)
will/shall have + been + -ING
present simple (they + not + walk)
they don't walk/they do not walk
past simple (they + not + walk)
they didn't walk/they did not walk
future simple (they + not + walk)
they won't walk/they will not walk
present simple (question: he + scream)
does he scream?
past simple (question: he + scream)
did he scream?
future simple (question: he + scream)
will he scream?