The past tense of in is inned. See all forms of in with easy examples.
The past tense of in-service is in-serviced. See all forms of in-service with easy examples.
The past tense of impurple is impurpled. See all forms of impurple with easy examples.
The past tense of improvize is improvized. See all forms of improvize with easy examples.
The past tense of impurify is impurified. See all forms of impurify with easy examples.
The past tense of impulse is impulsed. See all forms of impulse with easy examples.
The past tense of impure is impured. See all forms of impure with easy examples.
The past tense of impugn is impugned. See all forms of impugn with easy examples.
The past tense of improvisate is improvisated. See all forms of improvisate with easy examples.
The past tense of impropriate is impropriated. See all forms of impropriate with easy examples.