Regular verbs are conjugated to easy to learn rules.
They all have a base form.
e.g. to look
A gerund (ing) form where ing is added to the end of the verb.
e.g. looking
An -s form where s is added to the end of the verb.
e.g. looks
A past tense form where ed is added to the end of the verb.
e.g.
looked
A past participle form where ed is added to the end of the verb.
e.g. looked