is the following statement a regular or irregular verb and why.

John has become a rather good actor.
4b. John has became a rather good actor

4a. is the correct form of the irregular verb become.

The presence of the helping verb, "has," means we must use the past participle, "become."

The principal parts are:

Present: The sweet little boys become monsters when they get together.

Past: Yesterday these boys became monsters when they got together.

Past Participle: Those boys have become monsters many times.

The statement "John has become a rather good actor" contains a verb that is irregular.

To determine whether a verb is regular or irregular, we need to look at its past tense form. In this case, the verb in question is "become." The past tense of "become" is "became."

Regular verbs follow a consistent pattern for forming their past tense by adding "-ed" or "-d" to the base form of the verb (e.g., walk - walked, play - played). However, irregular verbs do not follow this pattern and have unique past tense forms (e.g., go - went, eat - ate).

Since "became" does not follow the typical regular verb pattern and has a unique past tense form, it is classified as an irregular verb.