It's an irregular verb.
irregular
Was is an example of irregular verb. Was is the past form of be. Here's the definition of irregular verb and regular verb. IRREGULAR VERB A verb that does not follow the usual rules for verb forms: be, is, are/ was, were , been REGULAR VERB A verb that forms its past tense and past participle by adding -d or -ed to the base form: walk, walked, walked; shout, shouted, shouted.
"He hit you" is the past tense form. Hit is an irregular verb and the past tense form is also "hit".
Went is the past tense of go.Go is an irregular verb. Because the past tense is not formed by adding -ed ie goed is not correct. The past tense of go is a new word = went.You can say went is the irregular past of go.
The simple past of regular verbs is formed by verb + ed :The boys jumped in the lake.The simple past of irregular verbs depends on the verb. To be is irregular. Compare:The boys are good. (Simple Present)The boys were good. (Simple Past)
"Have" is an irregular verb in English.
It's irregular.
regular or irregular
It's an irregular verb.
It's an irregular verb.
To swim is an irregular verb.
Ate is an irregular verb.
It's an irregular verb.
irregular
irregular
By is not a verb, so it is neither regular nor irregular.
It's a regular verb.