The past tense of bird-dog is bird-dogged. See all forms of bird-dog with easy examples.

The past tense of bird is birded. See all forms of bird with easy examples.

The past tense of birch is birched. See all forms of birch with easy examples.

The past tense of biotreat is biotreated. See all forms of biotreat with easy examples.

The past tense of biotransform is biotransformed. See all forms of biotransform with easy examples.

The past tense of biosynthesize is biosynthesized. See all forms of biosynthesize with easy examples.

The past tense of biosynthesise is biosynthesised. See all forms of biosynthesise with easy examples.

The past tense of biostimulate is biostimulated. See all forms of biostimulate with easy examples.

The past tense of bioremediate is bioremediated. See all forms of bioremediate with easy examples.

The past tense of biopsy is biopsied. See all forms of biopsy with easy examples.