It's a regular verb.
Broadcast is a regular verb.
The verb to learn is a regular verb.
do dictionaries show regular and irregular verb tenses
regular
To write is an irregular verb.
"Have" is an irregular verb in English.
regular or irregular
"Wrote" is an irregular verb.
It's an irregular verb.
It's an irregular verb.
To swim is an irregular verb.
It's an irregular verb.
It's an irregular verb.
Ate is an irregular verb.
irregular
irregular
By is not a verb, so it is neither regular nor irregular.