can separate
Regular verb: separate - separated- separated

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot separate
you cannot separate
she cannot separate
we cannot separate
you cannot separate
they cannot separate 	I cannot be separating
you cannot be separating
she cannot be separating
we cannot be separating
you cannot be separating
they cannot be separating	I cannot have separated
you cannot have separated
she cannot have separated
we cannot have separated
you cannot have separated
they cannot have separated	I cannot have been separating
you cannot have been separating
she cannot have been separating
we cannot have been separating
you cannot have been separating
they cannot have been separating	

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

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