There is no such thing as an irregular verb of joked.
Joke is a regular verb that means you add -ed to the verb to make past tense:
joke - joked, walk - walked, move - moved
Irregular verb do not have -ed they have a different word for past tense:
run - ran, catch - caught, make - made.
"Have" is an irregular verb in English.
It's irregular.
It's an irregular verb.
irregular verb irregular verb
Yes it's an irregular verb.
It's an irregular verb.
To swim is an irregular verb.
It's an irregular verb.
Ate is an irregular verb.
It's an irregular verb.
Yes it's an irregular verb.
The irregular verb for "said" is "say". The past tense of "say" is "said".