Verbs show actions, feelings, or states of being.

• Actions: I swim in the sea. She ate seven apples. You have been driving for an hour.
• Feelings; Rosie likes music. The rabbit wanted more food-He has hated onions ail his life.
• States of being: The teacher is sick. Dan became a dancer.

Types of verb tenses
Simple Tenses One-word  tenses.   English   has  only  two  simple  tenses: present and past.

• I saw a movie yesterday.

Compound Tenses.  Multiple-word tenses. English has ten compound tenses. The verbs to be and to have and to do act as auxiliary verbs.

• Will you see a movie tonight?

Perfect Tenses

• have seen; had been swimming; will have spoken

Tenses that involve have, has, or had + a past participle. English has six perfect tenses. An action in a perfect tense exerts an influence on a later state or action.

• I have seen that movie already, so I don't want to see it tonight.

Continuous Tenses (also known as Progressive Tenses)

• are watching; had been swimming; will be flying

Tenses that end with a conjugated form of to be + -ing form of the verb. English has six continuous tenses. Continuous tenses describe actions in progress.

• I have been seeing too many movies lately.

Auxiliary verbs
Auxiliary verbs, also known as helping verbs, stand before the main verb and change the tense of the action, or the speaker's perspective toward the action. The presence of auxiliary verbs in a sentence changes the way we form questions and negate the sentence. There are two types of auxiliary verbs.
1. Forms of to be (be, am, are, is, was, were, been, being), to have (have, has, had, having), and to do (do, does, did, done, doing) 2. So-called modal verbs: will, would, can, could, must, may, might, shall, should.

Regular verb forms
Most verbs have five forms: (1) base form, (2) infinitve, (3) simple past, (4) past participle, and (5) present participle, which is commonly known as the -ing form.
Base form: The dictionary form The base form of the verb "to talk" is talk, to be ► be.
Infinitive: to + base form: to be, to see, to read
Simple past: Add -ed or-d to base form.
talk ► talked      move ► moved    invent ► invented
• Change final -y to -ied: try ► tried. Keep the -y if it is preceded by a vowel: play ► played • Double the last letter of short verbs that end in a single vowel and consonant: shop ► shopped, occur ► occurred
Past participle: Same as simple past for regular verbs.
Present participle: Add -ing to base form: play ► playing • Drop final -e: dance ► dancing. But keep -e if the verb ends in -ее: see ► seeing • Change final -ie to -ying: dies ► dying, lie ► lying • Double the last consonant as above: ship ► shipping
Irregular verb forms