could concrete
Regular verb: concrete - concreted- concreted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could concrete
you could concrete
she could concrete
we could concrete
you could concrete
they could concrete 	I could be concreting
you could be concreting
she could be concreting
we could be concreting
you could be concreting
they could be concreting	I could have concreted
you could have concreted
she could have concreted
we could have concreted
you could have concreted
they could have concreted	I could have been concreting
you could have been concreting
she could have been concreting
we could have been concreting
you could have been concreting
they could have been concreting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not concrete
you could not concrete
she could not concrete
we could not concrete
you could not concrete
they could not concrete 	I could not be concreting
you could not be concreting
she could not be concreting
we could not be concreting
you could not be concreting
they could not be concreting	I could not have concreted
you could not have concreted
she could not have concreted
we could not have concreted
you could not have concreted
they could not have concreted	I could not have been concreting
you could not have been concreting
she could not have been concreting
we could not have been concreting
you could not have been concreting
they could not have been concreting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I concrete?
could you concrete?
could she concrete?
could we concrete?
could you concrete?
could they concrete? 	could I be concreting?
could you be concreting?
could she be concreting?
could we be concreting?
could you be concreting?
could they be concreting? 	could I have concreted?
could you have concreted?
could she have concreted?
could we have concreted?
could you have concreted?
could they have concreted? 	could I have been concreting?
could you have been concreting?
could she have been concreting?
could we have been concreting?
could you have been concreting?
could they have been concreting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not concrete?
could you not concrete?
could she not concrete?
could we not concrete?
could you not concrete?
could they not concrete? 	could I not be concreting?
could you not be concreting?
could she not be concreting?
could we not be concreting?
could you not be concreting?
could they not be concreting? 	could I not have concreted?
could you not have concreted?
could she not have concreted?
could we not have concreted?
could you not have concreted?
could they not have concreted? 	could I not have been concreting?
could you not have been concreting?
could she not have been concreting?
could we not have been concreting?
could you not have been concreting?
could they not have been concreting?