kinds of verb

VERB
A verb tells what something does or that something exists.
Examples:
Sally has shared her pencil with us.
Those oranges were delicious.
I hope Sue is bringing more apples tomorrow.
VERB TENSE
Verbs have different forms to show whether something already happened, is happening right now, or will happen in the future.
Examples:
Present tense: I walk to school.
Past tense: I walked to school.
Future tense: I will walk to school.
PRINCIPLE PARTS OF VERBS
Verbs have three principle parts. They are present, past, and past participle. For regular verbs, the past tense is formed by adding ed to the present tense; and the past participle is formed by using the past tense verb with a helping verb such as has, have, or had.
Examples:
Present: invite

Past: invited
Past Participle: has/have/had invited

KINDS OF VERBS

ACTION VERBS An action word tells what the subject does. (build, laugh, walk, express) or that it exists. (is, are, was, were).
Examples:
Bob raked the leaves into a pile.
I was late to school today. HELPING VERB ('be')
A helping verb tells when the action of a sentence takes place. The helping verb be has several forms am, is, are, were, and will. These helping verbs can be used in all three tenses.
Examples:
Present: Bob was talking. We were eating.

Past: I am coming. Dan is walking. They are singing.
Future: I will sing. They will eat.
LINKING VERB ('be')
A linking verb links a noun or an adjective in the predicate to the subject. Forms of the verb 'be' are the most common linking verbs. Linking verbs can be used in all three tenses.
TRANSITIVE AND INTRANSITIVE VERBS
An intransitive verb can stand alone in the predicate because its meaning is complete.
Example:
The plant grows.
A transitive verb needs a direct object to complete its meaning. The meaning of a sentence with a transitive verb is not complete without a direct object.
Examples:
The mouse wants cheese. Here cheese tells what the mouse wants.

Both transitive and intransitive verbs can be in the past, present or future tense.
IRREGULAR VERBS
Irregular verbs change completely in the past tense. Unlike regular verbs, the past tense forms of irregular verbs are not formed by adding ed.
Examples:
Present: know
Past: knew
Past Participle: has/have/had known