Kinds of Tenses:
Time can be divided into three periods:
1- Present
2- Past
3- Future

Next are the time sections:
1- Indefinite
2- Continuous
3- Perfect
4- Perfect Continuous

Every tense can be different from the other on the basis of three things:
1- Change in Verb
2- Helping Verb
3- Sign in Urdu
For easy and quick learning, observe the following table (A single example has been given to express in all the tenses) and some rules are described below. But remember, Practice makes the man perfect, so go on making practice by different exercises.

1- Change in Verb:
It means form of verb we use will be different in every sentence.

2- Helping Verb:
It can be used in positive sentences as well as in negative and interrogative ones.

3- Sign in Urdu:
It means what comes at the end of Urdu Sentence. As we are Pakistani and our National Language is Urdu, so it is necessary to have know-how of sign in Urdu so that we may be able to translate from English to Urdu and From Urdu to English when we need.

1- The order of parts used in Sentence-Structure will be same.
2- You should learn forms of verb on your finger-tips.
3- “ing” is always used with 1st form of verb.
4- In Simple Positive Sentence of Present Indefinite Tense, don’t use helping verb. It is a common mistake committed by most of the people and leaves a bad impression upon the audience e.g. “I go to the park” is correct but I am go to the park is incorrect.
5- 2nd form of verb is only used in Past Indefinite Tense.
6- 2nd form can never be used with “ing”.
7- 3rd form is used in three cases:
a) In Perfect Tenses with Helping Verb e.g. I have done my work.
b) In Passive Voice with Helping Verb. (will be explained later) e.g. Apples are eaten by me.
c) As a Past Participle (Means as a Subject or Adjective) e.g. I am interested in learning English, Tired people do not perform well.