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Definitions / The Principal Parts
conjugation- the list of a verb's tenses
tense- when an action of state of being takes place - time
principal parts- the basic forms of a verb
infinitive- present tense or base form of the verb (often preceded by "to")
present - infinitive or base form of the verb, may end in -s
present participle- present tense form + -ing
past - base form of the verb + -ed
past participle -past tense + have, has, had
The Tenses
present tense - happens regularly; also expresses a general truth
[base form of the verb, may also end in -s]
past tense- an action that already happened
[base form of the verb + -ed]
future tense - an action that will happen in the future
[will or shall + present tense form]
present perfect - something that happened at an indefinite time in the past; also tells about an action that
happened in the past and is still happening now
[have, has + past participle]
past perfect - names an action that happened before another action or event in the past
[had + past participle]
future perfect - indicates that an action will have been completed (finished or "perfected") at some point
in the future
[will + have + past participle]
present progressive tense - an action that is continuing right now
[am, are, is + present participle]
past progressive - an action that was continuing at an earlier time
[was, were + present participle]
future progressive - indicated continuing action, something that will be happening, going on, at some point
in the future
[will + be + present participle]
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