English verb conjugation
COULD BOBSLEIGH

Regular verb: bobsleigh - bobsleighed - bobsleighed

Affirmation

Simple form	V-ing form
I could bobsleigh you could bobsleigh he could bobsleigh we could bobsleigh you could bobsleigh they could bobsleigh	I could be bobsleighing you could be bobsleighing he could be bobsleighing we could be bobsleighing you could be bobsleighing they could be bobsleighing
Perfect	V-ing perfect
I could have bobsleighed you could have bobsleighed he could have bobsleighed we could have bobsleighed you could have bobsleighed they could have bobsleighed	I could have been bobsleighing you could have been bobsleighing he could have been bobsleighing we could have been bobsleighing you could have been bobsleighing they could have been bobsleighing

Negation

Simple form	V-ing form
I couldn't bobsleigh you couldn't bobsleigh he couldn't bobsleigh we couldn't bobsleigh you couldn't bobsleigh they couldn't bobsleigh	I couldn't be bobsleighing you couldn't be bobsleighing he couldn't be bobsleighing we couldn't be bobsleighing you couldn't be bobsleighing they couldn't be bobsleighing
Perfect	V-ing perfect
I couldn't have bobsleighed you couldn't have bobsleighed he couldn't have bobsleighed we couldn't have bobsleighed you couldn't have bobsleighed they couldn't have bobsleighed	I couldn't have been bobsleighing you couldn't have been bobsleighing he couldn't have been bobsleighing we couldn't have been bobsleighing you couldn't have been bobsleighing they couldn't have been bobsleighing

Interrogative form

Simple form	V-ing form
could I bobsleigh? could you bobsleigh? could he bobsleigh? could we bobsleigh? could you bobsleigh? could they bobsleigh?	could I be bobsleighing? could you be bobsleighing? could he be bobsleighing? could we be bobsleighing? could you be bobsleighing? could they be bobsleighing?
Perfect	V-ing perfect
could I have bobsleighed? could you have bobsleighed? could he have bobsleighed? could we have bobsleighed? could you have bobsleighed? could they have bobsleighed?	could I have been bobsleighing? could you have been bobsleighing? could he have been bobsleighing? could we have been bobsleighing? could you have been bobsleighing? could they have been bobsleighing?

Interro-negative form

Simple form	V-ing form
couldn't I bobsleigh? couldn't you bobsleigh? couldn't he bobsleigh? couldn't we bobsleigh? couldn't you bobsleigh? couldn't they bobsleigh?	couldn't I be bobsleighing? couldn't you be bobsleighing? couldn't he be bobsleighing? couldn't we be bobsleighing? couldn't you be bobsleighing? couldn't they be bobsleighing?
Perfect	V-ing perfect
couldn't I have bobsleighed? couldn't you have bobsleighed? couldn't he have bobsleighed? couldn't we have bobsleighed? couldn't you have bobsleighed? couldn't they have bobsleighed?	couldn't I have been bobsleighing? couldn't you have been bobsleighing? couldn't he have been bobsleighing? couldn't we have been bobsleighing? couldn't you have been bobsleighing? couldn't they have been bobsleighing?