Since the past tense and part participle of the verb needboth end with -ed and the third person singular ends with -s only, the verb need is a regular verb.
"Fly" is an irregular verb. Its past tense is "flew" and its past participle is "flown."
"Began" is an irregular verb. Its past tense form does not follow the usual pattern of adding "-ed" to the base form of the verb.
regular or irregular
It's an irregular verb.
It's an irregular verb.
Regular Verb
"Have" is an irregular verb in English.
It's an irregular verb.
To swim is an irregular verb.
It's an irregular verb.
"Wrote" is an irregular verb.
It's an irregular verb.