may restrengthen
Regular verb: restrengthen - restrengthened- restrengthened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may restrengthen
you may restrengthen
he may restrengthen
we may restrengthen
you may restrengthen
they may restrengthen 	I may be restrengthening
you may be restrengthening
he may be restrengthening
we may be restrengthening
you may be restrengthening
they may be restrengthening	I may have restrengthened
you may have restrengthened
he may have restrengthened
we may have restrengthened
you may have restrengthened
they may have restrengthened	I may have been restrengthening
you may have been restrengthening
he may have been restrengthening
we may have been restrengthening
you may have been restrengthening
they may have been restrengthening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't restrengthen
you mayn't restrengthen
he mayn't restrengthen
we mayn't restrengthen
you mayn't restrengthen
they mayn't restrengthen 	I mayn't be restrengthening
you mayn't be restrengthening
he mayn't be restrengthening
we mayn't be restrengthening
you mayn't be restrengthening
they mayn't be restrengthening	I mayn't have restrengthened
you mayn't have restrengthened
he mayn't have restrengthened
we mayn't have restrengthened
you mayn't have restrengthened
they mayn't have restrengthened	I mayn't have been restrengthening
you mayn't have been restrengthening
he mayn't have been restrengthening
we mayn't have been restrengthening
you mayn't have been restrengthening
they mayn't have been restrengthening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I restrengthen?
may you restrengthen?
may he restrengthen?
may we restrengthen?
may you restrengthen?
may they restrengthen? 	may I be restrengthening?
may you be restrengthening?
may he be restrengthening?
may we be restrengthening?
may you be restrengthening?
may they be restrengthening? 	may I have restrengthened?
may you have restrengthened?
may he have restrengthened?
may we have restrengthened?
may you have restrengthened?
may they have restrengthened? 	may I have been restrengthening?
may you have been restrengthening?
may he have been restrengthening?
may we have been restrengthening?
may you have been restrengthening?
may they have been restrengthening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I restrengthen?
mayn't you restrengthen?
mayn't he restrengthen?
mayn't we restrengthen?
mayn't you restrengthen?
mayn't they restrengthen? 	mayn't I be restrengthening?
mayn't you be restrengthening?
mayn't he be restrengthening?
mayn't we be restrengthening?
mayn't you be restrengthening?
mayn't they be restrengthening? 	mayn't I have restrengthened?
mayn't you have restrengthened?
mayn't he have restrengthened?
mayn't we have restrengthened?
mayn't you have restrengthened?
mayn't they have restrengthened? 	mayn't I have been restrengthening?
mayn't you have been restrengthening?
mayn't he have been restrengthening?
mayn't we have been restrengthening?
mayn't you have been restrengthening?
mayn't they have been restrengthening?