Question

define all tenses, when they are used and their formula
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Answer 1

Answer:

SIMPLE PRESENT TENSE -

A action that is a habit and happens regularly.

subject + verb (s) eg . He drinks coffee everyday.

SIMPLE CONTINUOUS TENSE -

An action that is happening and may happen in the future too.

am/is/are + verb+(ing) eg. I am doing my work.

PRESENT PERFECT TENSE -

Actions that have just happened in the immediate past

(has/have + V3) eg. They have opened the door.

PRESENT PERFECT CONTINUOUS -

CONTINUED OR ONGOING ACTION THAT STARTED IN THE PAST AND IS CONTINUED UNTIL NOW.

( HAS/HAVE + BEEN + VERB WITH ING ) EG. IT HAS BEEN RAINING FOR THREE DAYS.

sorry i am only explaining present . i have not copied it from internet

pls marks it as brainliesy...

Explanation:

Answer 2

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A verb-based method used to indicate the time, and sometimes the continuation or completeness, of an action or state in relation to the time of speaking. ORIGIN Latin tempus "time" The concept of tense in English is a method that we use to refer to time - past, present and future.