A verb doing or being word,  it expresses an action, a happening,  a process or a state. The tense of a verb shows when an action takes place a verb tense indicates time.

There are two verb tenses- tenses Present and Past:

Present tense shows that an action takes place now or is completed now and end in-ing: Example: She is going to school.

Past tense shows that an action took place yesterday or at some previous time and usually ends in-ed :

Example: She walked to school ; She had walked to school

Regular past tense end in’-ed’ ‘-d’ : rain- rained, kick-kicked, live-lived, deal-dealt

Irregular past tense ‘-ew’ : throw- threw, grow-grew, fly –flew, draw-drew, know-knew

Some verbs use the same tenses for present and past e.g. spread, cut, burst, hurt, cost , cast, hit

The negative is usually formed by adding  NOT  before the main verb:     

Example:  I shall not see him, she was not crying

Except for the simple present and the simple past tenses all tenses are formed with the Auxiliary verbs:  do,  have,  had,  be,  and Modal verbs:  shall,  will,  should  and would.

In speeches auxiliaries are often contacted:

He is running becomes  ‘He’s running.’

She has done with her Homework  becomes  ‘She’s done with her Homework.’

He had scored becomes ‘He’d scored.’

She would often sit at home alone. Become she’d often sit at home alone.