The past tense of underkeep is underkept. See all forms of underkeep with easy examples.
The past tense of underinvest is underinvested. See all forms of underinvest with easy examples.
The past tense of underinsure is underinsured. See all forms of underinsure with easy examples.
The past tense of underinsulate is underinsulated. See all forms of underinsulate with easy examples.
The past tense of underinflate is underinflated. See all forms of underinflate with easy examples.
The past tense of underhydrate is underhydrated. See all forms of underhydrate with easy examples.
The past tense of underhole is underholed. See all forms of underhole with easy examples.
The past tense of underhold is underheld. See all forms of underhold with easy examples.
The past tense of underheat is underheated. See all forms of underheat with easy examples.
The past tense of underhang is underhung. See all forms of underhang with easy examples.