The past tense of upbear is upbore. See all forms of upbear with easy examples.
The past tense of upbar is upbarred. See all forms of upbar with easy examples.
The past tense of up-regulate is up-regulated. See all forms of up-regulate with easy examples.
The past tense of up-plow is up-plowed. See all forms of up-plow with easy examples.
The past tense of up-end is up-ended. See all forms of up-end with easy examples.
The past tense of up is upped. See all forms of up with easy examples.
The past tense of unzipper is unzippered. See all forms of unzipper with easy examples.
The past tense of unzip is unzipped. See all forms of unzip with easy examples.
The past tense of unyoke is unyoked. See all forms of unyoke with easy examples.
The past tense of unwrite is unwrote. See all forms of unwrite with easy examples.