This page provides a way for you to obtain a table of the duration of daylight or darkness for any year between 1700 and 2100. Decide on which form to use. If you want a table for cities or towns in the U.S. or its territories, use Form A below. For other locations, use Form B below.
Definition. In English grammar, the present tense is a form of the verb that is represented in English by either the third-person singular-s inflection (for example, She laughs ) or the base form (I/You/We/They laugh ). Also called the non-past. Contrast with the past tense or preterite.
The Present Perfect is Used to Express: actions of duration that occurred in the past (before now) of unspecified time; actions that started in the past but continue to the present; actions that started in the past but stopped recently; It is important to consider that the TIME of the present perfect tense is unknown. To form the present perfect: Subject + has/have + past participle of verb; Present Perfect Tense Examples. actions in the past of indefinite time She has passed the test.