could interpenetrate
Regular verb: interpenetrate - interpenetrated- interpenetrated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could interpenetrate
you could interpenetrate
he could interpenetrate
we could interpenetrate
you could interpenetrate
they could interpenetrate 	I could be interpenetrating
you could be interpenetrating
he could be interpenetrating
we could be interpenetrating
you could be interpenetrating
they could be interpenetrating	I could have interpenetrated
you could have interpenetrated
he could have interpenetrated
we could have interpenetrated
you could have interpenetrated
they could have interpenetrated	I could have been interpenetrating
you could have been interpenetrating
he could have been interpenetrating
we could have been interpenetrating
you could have been interpenetrating
they could have been interpenetrating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not interpenetrate
you could not interpenetrate
he could not interpenetrate
we could not interpenetrate
you could not interpenetrate
they could not interpenetrate 	I could not be interpenetrating
you could not be interpenetrating
he could not be interpenetrating
we could not be interpenetrating
you could not be interpenetrating
they could not be interpenetrating	I could not have interpenetrated
you could not have interpenetrated
he could not have interpenetrated
we could not have interpenetrated
you could not have interpenetrated
they could not have interpenetrated	I could not have been interpenetrating
you could not have been interpenetrating
he could not have been interpenetrating
we could not have been interpenetrating
you could not have been interpenetrating
they could not have been interpenetrating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I interpenetrate?
could you interpenetrate?
could he interpenetrate?
could we interpenetrate?
could you interpenetrate?
could they interpenetrate? 	could I be interpenetrating?
could you be interpenetrating?
could he be interpenetrating?
could we be interpenetrating?
could you be interpenetrating?
could they be interpenetrating? 	could I have interpenetrated?
could you have interpenetrated?
could he have interpenetrated?
could we have interpenetrated?
could you have interpenetrated?
could they have interpenetrated? 	could I have been interpenetrating?
could you have been interpenetrating?
could he have been interpenetrating?
could we have been interpenetrating?
could you have been interpenetrating?
could they have been interpenetrating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not interpenetrate?
could you not interpenetrate?
could he not interpenetrate?
could we not interpenetrate?
could you not interpenetrate?
could they not interpenetrate? 	could I not be interpenetrating?
could you not be interpenetrating?
could he not be interpenetrating?
could we not be interpenetrating?
could you not be interpenetrating?
could they not be interpenetrating? 	could I not have interpenetrated?
could you not have interpenetrated?
could he not have interpenetrated?
could we not have interpenetrated?
could you not have interpenetrated?
could they not have interpenetrated? 	could I not have been interpenetrating?
could you not have been interpenetrating?
could he not have been interpenetrating?
could we not have been interpenetrating?
could you not have been interpenetrating?
could they not have been interpenetrating?