Fill in the Blanks Irregular verbsOnline version Common irregular verbs in past by Angie Nava 1 forgave ate lay began swam was drank saw sang gave were The past form of 'be' is or . The past form of 'eat' is . The past form of 'forgive' is . The past form of 'give' is . The past form of 'lie' is . The past form of 'see' is . The past form of 'begin' is . The past form of 'drink' is . The past form of 'sing' is . The past form of 'swim' is .