could compete
Regular verb: compete - competed- competed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could compete
you could compete
she could compete
we could compete
you could compete
they could compete 	I could be competing
you could be competing
she could be competing
we could be competing
you could be competing
they could be competing	I could have competed
you could have competed
she could have competed
we could have competed
you could have competed
they could have competed	I could have been competing
you could have been competing
she could have been competing
we could have been competing
you could have been competing
they could have been competing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't compete
you couldn't compete
she couldn't compete
we couldn't compete
you couldn't compete
they couldn't compete 	I couldn't be competing
you couldn't be competing
she couldn't be competing
we couldn't be competing
you couldn't be competing
they couldn't be competing	I couldn't have competed
you couldn't have competed
she couldn't have competed
we couldn't have competed
you couldn't have competed
they couldn't have competed	I couldn't have been competing
you couldn't have been competing
she couldn't have been competing
we couldn't have been competing
you couldn't have been competing
they couldn't have been competing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I compete?
could you compete?
could she compete?
could we compete?
could you compete?
could they compete? 	could I be competing?
could you be competing?
could she be competing?
could we be competing?
could you be competing?
could they be competing? 	could I have competed?
could you have competed?
could she have competed?
could we have competed?
could you have competed?
could they have competed? 	could I have been competing?
could you have been competing?
could she have been competing?
could we have been competing?
could you have been competing?
could they have been competing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I compete?
couldn't you compete?
couldn't she compete?
couldn't we compete?
couldn't you compete?
couldn't they compete? 	couldn't I be competing?
couldn't you be competing?
couldn't she be competing?
couldn't we be competing?
couldn't you be competing?
couldn't they be competing? 	couldn't I have competed?
couldn't you have competed?
couldn't she have competed?
couldn't we have competed?
couldn't you have competed?
couldn't they have competed? 	couldn't I have been competing?
couldn't you have been competing?
couldn't she have been competing?
couldn't we have been competing?
couldn't you have been competing?
couldn't they have been competing?