could bulldoze
Regular verb: bulldoze - bulldozed- bulldozed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
I could not bulldoze
you could not bulldoze
he could not bulldoze
we could not bulldoze
you could not bulldoze
they could not bulldoze 	I could not be bulldozing
you could not be bulldozing
he could not be bulldozing
we could not be bulldozing
you could not be bulldozing
they could not be bulldozing	I could not have bulldozed
you could not have bulldozed
he could not have bulldozed
we could not have bulldozed
you could not have bulldozed
they could not have bulldozed	I could not have been bulldozing
you could not have been bulldozing
he could not have been bulldozing
we could not have been bulldozing
you could not have been bulldozing
they could not have been bulldozing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
could I not bulldoze?
could you not bulldoze?
could he not bulldoze?
could we not bulldoze?
could you not bulldoze?
could they not bulldoze? 	could I not be bulldozing?
could you not be bulldozing?
could he not be bulldozing?
could we not be bulldozing?
could you not be bulldozing?
could they not be bulldozing? 	could I not have bulldozed?
could you not have bulldozed?
could he not have bulldozed?
could we not have bulldozed?
could you not have bulldozed?
could they not have bulldozed? 	could I not have been bulldozing?
could you not have been bulldozing?
could he not have been bulldozing?
could we not have been bulldozing?
could you not have been bulldozing?
could they not have been bulldozing?