The verb "cry" is an irregular verb. Its past tense form is "cried," which does not follow the typical pattern of adding "-ed" to the base form. Instead, it undergoes a vowel change, making it irregular in its conjugation.
"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.
It's an irregular verb.
Ate is an irregular verb.
It's an irregular verb.
By is not a verb, so it is neither regular nor irregular.
Shown is an irregular verb because shown is different to ending in -ed. Does shown end in -ed? No it doesn't end in -ed so which makes it an irregular verb.
irregular