could demarcate
Regular verb: demarcate - demarcated- demarcated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could demarcate
you could demarcate
he could demarcate
we could demarcate
you could demarcate
they could demarcate 	I could be demarcating
you could be demarcating
he could be demarcating
we could be demarcating
you could be demarcating
they could be demarcating	I could have demarcated
you could have demarcated
he could have demarcated
we could have demarcated
you could have demarcated
they could have demarcated	I could have been demarcating
you could have been demarcating
he could have been demarcating
we could have been demarcating
you could have been demarcating
they could have been demarcating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not demarcate
you could not demarcate
he could not demarcate
we could not demarcate
you could not demarcate
they could not demarcate 	I could not be demarcating
you could not be demarcating
he could not be demarcating
we could not be demarcating
you could not be demarcating
they could not be demarcating	I could not have demarcated
you could not have demarcated
he could not have demarcated
we could not have demarcated
you could not have demarcated
they could not have demarcated	I could not have been demarcating
you could not have been demarcating
he could not have been demarcating
we could not have been demarcating
you could not have been demarcating
they could not have been demarcating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I demarcate?
could you demarcate?
could he demarcate?
could we demarcate?
could you demarcate?
could they demarcate? 	could I be demarcating?
could you be demarcating?
could he be demarcating?
could we be demarcating?
could you be demarcating?
could they be demarcating? 	could I have demarcated?
could you have demarcated?
could he have demarcated?
could we have demarcated?
could you have demarcated?
could they have demarcated? 	could I have been demarcating?
could you have been demarcating?
could he have been demarcating?
could we have been demarcating?
could you have been demarcating?
could they have been demarcating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not demarcate?
could you not demarcate?
could he not demarcate?
could we not demarcate?
could you not demarcate?
could they not demarcate? 	could I not be demarcating?
could you not be demarcating?
could he not be demarcating?
could we not be demarcating?
could you not be demarcating?
could they not be demarcating? 	could I not have demarcated?
could you not have demarcated?
could he not have demarcated?
could we not have demarcated?
could you not have demarcated?
could they not have demarcated? 	could I not have been demarcating?
could you not have been demarcating?
could he not have been demarcating?
could we not have been demarcating?
could you not have been demarcating?
could they not have been demarcating?