could object
Regular verb: object - objected- objected

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could object
you could object
he could object
we could object
you could object
they could object 	I could be objecting
you could be objecting
he could be objecting
we could be objecting
you could be objecting
they could be objecting	I could have objected
you could have objected
he could have objected
we could have objected
you could have objected
they could have objected	I could have been objecting
you could have been objecting
he could have been objecting
we could have been objecting
you could have been objecting
they could have been objecting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not object
you could not object
he could not object
we could not object
you could not object
they could not object 	I could not be objecting
you could not be objecting
he could not be objecting
we could not be objecting
you could not be objecting
they could not be objecting	I could not have objected
you could not have objected
he could not have objected
we could not have objected
you could not have objected
they could not have objected	I could not have been objecting
you could not have been objecting
he could not have been objecting
we could not have been objecting
you could not have been objecting
they could not have been objecting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I object?
could you object?
could he object?
could we object?
could you object?
could they object? 	could I be objecting?
could you be objecting?
could he be objecting?
could we be objecting?
could you be objecting?
could they be objecting? 	could I have objected?
could you have objected?
could he have objected?
could we have objected?
could you have objected?
could they have objected? 	could I have been objecting?
could you have been objecting?
could he have been objecting?
could we have been objecting?
could you have been objecting?
could they have been objecting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not object?
could you not object?
could he not object?
could we not object?
could you not object?
could they not object? 	could I not be objecting?
could you not be objecting?
could he not be objecting?
could we not be objecting?
could you not be objecting?
could they not be objecting? 	could I not have objected?
could you not have objected?
could he not have objected?
could we not have objected?
could you not have objected?
could they not have objected? 	could I not have been objecting?
could you not have been objecting?
could he not have been objecting?
could we not have been objecting?
could you not have been objecting?
could they not have been objecting?