The past tense of undergrow is undergrew. See all forms of undergrow with easy examples.

The past tense of underground is undergrounded. See all forms of underground with easy examples.

The past tense of undergoe is underwent. See all forms of undergoe with easy examples.

The past tense of undergo is underwent. See all forms of undergo with easy examples.

The past tense of undergird is undergirded. See all forms of undergird with easy examples.

The past tense of underget is undergot. See all forms of underget with easy examples.

The past tense of undergeneralize is undergeneralized. See all forms of undergeneralize with easy examples.

The past tense of underfurrow is underfurrowed. See all forms of underfurrow with easy examples.

The past tense of underfurnish is underfurnished. See all forms of underfurnish with easy examples.

The past tense of underfund is underfunded. See all forms of underfund with easy examples.