may concrete
Regular verb: concrete - concreted- concreted

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

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

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

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