Forms of verbs Irregular verbs
Regular verbs are those whose past tense and past participles are formed by adding the ending -d or -ed.
manage, managed, managed
There is no formula to predict how an irregular verb will form its past tense and past participle forms. There are over 400 irregular verbs in English and the 10 most commonly used verbs are irregular.
There are verbs that just stay how they are:
put, put, put
Some verbs have 2 forms:
feed, fed, fed
Some verbs have 3 forms:
rise, rose, risen