The past tense of unstaple is unstapled. See all forms of unstaple with easy examples.

The past tense of unstack is unstacked. See all forms of unstack with easy examples.

The past tense of unstabilize is unstabilized. See all forms of unstabilize with easy examples.

The past tense of unsqueeze is unsqueezed. See all forms of unsqueeze with easy examples.

The past tense of unspool is unspooled. See all forms of unspool with easy examples.

The past tense of unspoil is unspoiled or unspoilt. See all forms of unspoil with easy examples.

The past tense of unspit is unspitted. See all forms of unspit with easy examples.

The past tense of unspiritualize is unspiritualized. See all forms of unspiritualize with easy examples.

The past tense of unspirit is unspirited. See all forms of unspirit with easy examples.

The past tense of unspin is unspun. See all forms of unspin with easy examples.