Verbs that form their past and past participle by adding ed , d , or t to the present are called
a) regular.
b) irregular
Verbs that form their past and past participle by adding "ed," "d," or "t" to the present are called regular verbs. Regular verbs follow a consistent pattern for forming their past tense and past participle by adding these endings to the base or present form of the verb. For example, the base form "walk" becomes "walked" in the past tense and "walked" as the past participle. Other examples include "talked," "played," and "jumped." These verbs are considered regular because they follow a regular or predictable pattern when forming their past and past participle forms.
Irregular verbs include known, gone, seen.
What do you think?