Question

structure of all tenses according to class 9​

Answer 1

Answer:

There are two tenses in English—the simple present and the simple past.

Note. Remember that there is no future tense in English to express future time. We use the modal auxiliaries shall and will in the present simple tense, etc, to express future time.

The following table shows the different forms of the verb:

Tenses-4-1

5. Forms of the Present Simple Tense:We form the negative sentences by using doesn’t or don’t before the main verb.

The interrogative sentences are formed by using do or does before the subject.

The negative interrogative sentences are formed by using do or does before the subject and not after the subject.

But the short forms don’t and doesn’t come before the subject.

Tenses-5-2

Tenses-5-1

Thus we have seen that the simple present tense is formed by using the plain infinitive. But -s or -es are added to the bare infinitive (i.e. infinitive without ‘to’) for the third person singular (He, She) and singular noun (Nitu).

We form the negative sentences by using doesn’t or don’t before the main verb.