Present Indefinite Tense

In Present Indefinite Tense we talk about the present action as it just takes place.

Forms of verb

When sentence is converted into negative or interrogative then 3rd person singular form is changed into 1st form, for example; he works hard and he doesn’t work hard. She washes the dishes and she doesn’t wash the dishes. The detail of forms of the verb is as follows.

  • 3rd Person Singular form (with he, she, it and singular noun)
  • 1st form (with I, we, you, they, plural nouns)

Auxiliary (helping verb)
Both auxiliaries (do and does) are only used in negative or interrogative sentences, not in the positives sentences. The use of auxiliary is different with the different subjects. The detail of which is as follows.

  • Do (with I, we, you, they, plural nouns)
  • Does (with he, she, it and singular noun)

Negative
When sentence is converted into negative then not is used with the auxiliaries. You can use the short form too in which not is used with auxiliary as one word. Below are some examples to make you understand.

  • Do not (don’t in short)
  • Does not (doesn’t in short)

Interrogative
While making interrogative the auxiliaries are used at the beginning of sentence.

  • Do / Does are used at the beginning of the sentence.

Examples of Positive sentences

  1. I understand that I have to score well.
  2. He jumps up high.
  3. She speaks loudly.
  4. You really tolerate many things.
  5. They work on this problem to be resolved.

Examples of does

  1. He does not work hard. (Negative sentence)
  2. She does not come regularly. (Negative sentence)
  3. Does he eat rice? (Interrogative sentence)

Examples of do

  1. I don’t understand this thing. (Negative sentence)
  2. You don’t study. (Negative sentence)
  3. Do they cry for help? (Interrogative sentence)

Note: Remember when do or does is used with the positive sentences it means that you are going to emphasize. Thus in positive sentences the use of auxiliary in Present Indefinite Tense is for the emphasis.

Examples

  1. I do study.
  2. He does guide me.
  3. You do understand that this thing is harmful for the patient.