can concrete
Regular verb: concrete - concreted- concreted

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't concrete
you can't concrete
she can't concrete
we can't concrete
you can't concrete
they can't concrete 	I can't be concreting
you can't be concreting
she can't be concreting
we can't be concreting
you can't be concreting
they can't be concreting	I can't have concreted
you can't have concreted
she can't have concreted
we can't have concreted
you can't have concreted
they can't have concreted	I can't have been concreting
you can't have been concreting
she can't have been concreting
we can't have been concreting
you can't have been concreting
they can't have been concreting	

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

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