Is walked a Irregular verb

Answer 1

If the past tense ends in -ed then the verb is a regular verb.

For example: talked, looked, focused, glimpsed, deliberated, liberated

Irregular verbs do not end in -ed they can be the same word as the present form or different from the present form.

For example:cut - cut, keep - kept, get - got, drive - drove, lose - lost, etc

Answer 2

Yes, "walked" is an irregular verb in English. The past tense of regular verbs usually ends in "-ed," but "walked" is an exception because its base form and past tense form do not follow this pattern.