could impregnate
Regular verb: impregnate - impregnated- impregnated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could impregnate
you could impregnate
he could impregnate
we could impregnate
you could impregnate
they could impregnate 	I could be impregnating
you could be impregnating
he could be impregnating
we could be impregnating
you could be impregnating
they could be impregnating	I could have impregnated
you could have impregnated
he could have impregnated
we could have impregnated
you could have impregnated
they could have impregnated	I could have been impregnating
you could have been impregnating
he could have been impregnating
we could have been impregnating
you could have been impregnating
they could have been impregnating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't impregnate
you couldn't impregnate
he couldn't impregnate
we couldn't impregnate
you couldn't impregnate
they couldn't impregnate 	I couldn't be impregnating
you couldn't be impregnating
he couldn't be impregnating
we couldn't be impregnating
you couldn't be impregnating
they couldn't be impregnating	I couldn't have impregnated
you couldn't have impregnated
he couldn't have impregnated
we couldn't have impregnated
you couldn't have impregnated
they couldn't have impregnated	I couldn't have been impregnating
you couldn't have been impregnating
he couldn't have been impregnating
we couldn't have been impregnating
you couldn't have been impregnating
they couldn't have been impregnating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I impregnate?
could you impregnate?
could he impregnate?
could we impregnate?
could you impregnate?
could they impregnate? 	could I be impregnating?
could you be impregnating?
could he be impregnating?
could we be impregnating?
could you be impregnating?
could they be impregnating? 	could I have impregnated?
could you have impregnated?
could he have impregnated?
could we have impregnated?
could you have impregnated?
could they have impregnated? 	could I have been impregnating?
could you have been impregnating?
could he have been impregnating?
could we have been impregnating?
could you have been impregnating?
could they have been impregnating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I impregnate?
couldn't you impregnate?
couldn't he impregnate?
couldn't we impregnate?
couldn't you impregnate?
couldn't they impregnate? 	couldn't I be impregnating?
couldn't you be impregnating?
couldn't he be impregnating?
couldn't we be impregnating?
couldn't you be impregnating?
couldn't they be impregnating? 	couldn't I have impregnated?
couldn't you have impregnated?
couldn't he have impregnated?
couldn't we have impregnated?
couldn't you have impregnated?
couldn't they have impregnated? 	couldn't I have been impregnating?
couldn't you have been impregnating?
couldn't he have been impregnating?
couldn't we have been impregnating?
couldn't you have been impregnating?
couldn't they have been impregnating?