could separate
Regular verb: separate - separated- separated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could separate
you could separate
he could separate
we could separate
you could separate
they could separate 	I could be separating
you could be separating
he could be separating
we could be separating
you could be separating
they could be separating	I could have separated
you could have separated
he could have separated
we could have separated
you could have separated
they could have separated	I could have been separating
you could have been separating
he could have been separating
we could have been separating
you could have been separating
they could have been separating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not separate
you could not separate
he could not separate
we could not separate
you could not separate
they could not separate 	I could not be separating
you could not be separating
he could not be separating
we could not be separating
you could not be separating
they could not be separating	I could not have separated
you could not have separated
he could not have separated
we could not have separated
you could not have separated
they could not have separated	I could not have been separating
you could not have been separating
he could not have been separating
we could not have been separating
you could not have been separating
they could not have been separating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I separate?
could you separate?
could he separate?
could we separate?
could you separate?
could they separate? 	could I be separating?
could you be separating?
could he be separating?
could we be separating?
could you be separating?
could they be separating? 	could I have separated?
could you have separated?
could he have separated?
could we have separated?
could you have separated?
could they have separated? 	could I have been separating?
could you have been separating?
could he have been separating?
could we have been separating?
could you have been separating?
could they have been separating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not separate?
could you not separate?
could he not separate?
could we not separate?
could you not separate?
could they not separate? 	could I not be separating?
could you not be separating?
could he not be separating?
could we not be separating?
could you not be separating?
could they not be separating? 	could I not have separated?
could you not have separated?
could he not have separated?
could we not have separated?
could you not have separated?
could they not have separated? 	could I not have been separating?
could you not have been separating?
could he not have been separating?
could we not have been separating?
could you not have been separating?
could they not have been separating?