Present
Tense
1) If you want to describe habitual actions.
example: The Writing Center opens at 8:00 a.m.
Here, the simple present shows the regular schedule of the Writing Center.
2) Use simple present when you want to describe something that occurs at the time of speaking with verbs that refer to the senses (smell, taste, feel, see, touch).
example: I see a boat coming.
3) Simple present is used when talking about general truth.
example: The sun shines.
4) You should use the simple present when writing about a literary work.
example: In Maupassant's The Necklace Mme Loisel is a selfish, unrealistic woman.
5) Simple present is used to express a near, specified future.
example: The train arrives tomorrow at 10:00a.m.
1) Use of the present perfect ( have + -ed). This tense means that something happened in the past but continues in the present.
example: I have broken my leg a week ago.
The use of that particular tense means that a
week ago (the past) my leg was broken. This incident happened in
the past. But contrary to a simple past where the action in the past has
nothing to do with the present, the result of the action from the past
continues today. Specifically, my leg, today (a week after the incident)
is still broken.
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Attention!!!
The
present perfect can also be used to refer to a recent past action. For
example, you could say "I have just finished my homework."
2) Use of the present progressive (to be + -ing). This tense is used for actions in current development.
example: I am typing on the computer.
The use of that tense shows that the action is in action! In the example above, I am right now typing on the computer.