English verb conjugation
COULD BULLDOZE

Regular verb: bulldoze - bulldozed - bulldozed

Affirmation

Simple form	V-ing form
I could bulldoze you could bulldoze he could bulldoze we could bulldoze you could bulldoze they could bulldoze	I could be bulldozing you could be bulldozing he could be bulldozing we could be bulldozing you could be bulldozing they could be bulldozing
Perfect	V-ing perfect
I could have bulldozed you could have bulldozed he could have bulldozed we could have bulldozed you could have bulldozed they could have bulldozed	I could have been bulldozing you could have been bulldozing he could have been bulldozing we could have been bulldozing you could have been bulldozing they could have been bulldozing

Negation

Simple form	V-ing form
I couldn't bulldoze you couldn't bulldoze he couldn't bulldoze we couldn't bulldoze you couldn't bulldoze they couldn't bulldoze	I couldn't be bulldozing you couldn't be bulldozing he couldn't be bulldozing we couldn't be bulldozing you couldn't be bulldozing they couldn't be bulldozing
Perfect	V-ing perfect
I couldn't have bulldozed you couldn't have bulldozed he couldn't have bulldozed we couldn't have bulldozed you couldn't have bulldozed they couldn't have bulldozed	I couldn't have been bulldozing you couldn't have been bulldozing he couldn't have been bulldozing we couldn't have been bulldozing you couldn't have been bulldozing they couldn't have been bulldozing

Interrogative form

Simple form	V-ing form
could I bulldoze? could you bulldoze? could he bulldoze? could we bulldoze? could you bulldoze? could they bulldoze?	could I be bulldozing? could you be bulldozing? could he be bulldozing? could we be bulldozing? could you be bulldozing? could they be bulldozing?
Perfect	V-ing perfect
could I have bulldozed? could you have bulldozed? could he have bulldozed? could we have bulldozed? could you have bulldozed? could they have bulldozed?	could I have been bulldozing? could you have been bulldozing? could he have been bulldozing? could we have been bulldozing? could you have been bulldozing? could they have been bulldozing?

Interro-negative form

Simple form	V-ing form
couldn't I bulldoze? couldn't you bulldoze? couldn't he bulldoze? couldn't we bulldoze? couldn't you bulldoze? couldn't they bulldoze?	couldn't I be bulldozing? couldn't you be bulldozing? couldn't he be bulldozing? couldn't we be bulldozing? couldn't you be bulldozing? couldn't they be bulldozing?
Perfect	V-ing perfect
couldn't I have bulldozed? couldn't you have bulldozed? couldn't he have bulldozed? couldn't we have bulldozed? couldn't you have bulldozed? couldn't they have bulldozed?	couldn't I have been bulldozing? couldn't you have been bulldozing? couldn't he have been bulldozing? couldn't we have been bulldozing? couldn't you have been bulldozing? couldn't they have been bulldozing?