could constipate
Regular verb: constipate - constipated- constipated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could constipate
you could constipate
he could constipate
we could constipate
you could constipate
they could constipate 	I could be constipating
you could be constipating
he could be constipating
we could be constipating
you could be constipating
they could be constipating	I could have constipated
you could have constipated
he could have constipated
we could have constipated
you could have constipated
they could have constipated	I could have been constipating
you could have been constipating
he could have been constipating
we could have been constipating
you could have been constipating
they could have been constipating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't constipate
you couldn't constipate
he couldn't constipate
we couldn't constipate
you couldn't constipate
they couldn't constipate 	I couldn't be constipating
you couldn't be constipating
he couldn't be constipating
we couldn't be constipating
you couldn't be constipating
they couldn't be constipating	I couldn't have constipated
you couldn't have constipated
he couldn't have constipated
we couldn't have constipated
you couldn't have constipated
they couldn't have constipated	I couldn't have been constipating
you couldn't have been constipating
he couldn't have been constipating
we couldn't have been constipating
you couldn't have been constipating
they couldn't have been constipating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I constipate?
could you constipate?
could he constipate?
could we constipate?
could you constipate?
could they constipate? 	could I be constipating?
could you be constipating?
could he be constipating?
could we be constipating?
could you be constipating?
could they be constipating? 	could I have constipated?
could you have constipated?
could he have constipated?
could we have constipated?
could you have constipated?
could they have constipated? 	could I have been constipating?
could you have been constipating?
could he have been constipating?
could we have been constipating?
could you have been constipating?
could they have been constipating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I constipate?
couldn't you constipate?
couldn't he constipate?
couldn't we constipate?
couldn't you constipate?
couldn't they constipate? 	couldn't I be constipating?
couldn't you be constipating?
couldn't he be constipating?
couldn't we be constipating?
couldn't you be constipating?
couldn't they be constipating? 	couldn't I have constipated?
couldn't you have constipated?
couldn't he have constipated?
couldn't we have constipated?
couldn't you have constipated?
couldn't they have constipated? 	couldn't I have been constipating?
couldn't you have been constipating?
couldn't he have been constipating?
couldn't we have been constipating?
couldn't you have been constipating?
couldn't they have been constipating?