The past tense of obstruct is obstructed. See all forms of obstruct with easy examples.
The past tense of obsolete is obsoleted. See all forms of obsolete with easy examples.
The past tense of obstetricate is obstetricated. See all forms of obstetricate with easy examples.
The past tense of obsignate is obsignated. See all forms of obsignate with easy examples.
The past tense of obsolesce is obsolesced. See all forms of obsolesce with easy examples.
The past tense of obsign is obsigned. See all forms of obsign with easy examples.
The past tense of obsecrate is obsecrated. See all forms of obsecrate with easy examples.
The past tense of observe is observed. See all forms of observe with easy examples.
The past tense of obrogate is obrogated. See all forms of obrogate with easy examples.
The past tense of obscure is obscured. See all forms of obscure with easy examples.