may base
Verbo regular: base - based- based

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I may base
you may base
he may base
we may base
you may base
they may base 	I may be basing
you may be basing
he may be basing
we may be basing
you may be basing
they may be basing	I may have based
you may have based
he may have based
we may have based
you may have based
they may have based	I may have been basing
you may have been basing
he may have been basing
we may have been basing
you may have been basing
they may have been basing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mayn't base
you mayn't base
he mayn't base
we mayn't base
you mayn't base
they mayn't base 	I mayn't be basing
you mayn't be basing
he mayn't be basing
we mayn't be basing
you mayn't be basing
they mayn't be basing	I mayn't have based
you mayn't have based
he mayn't have based
we mayn't have based
you mayn't have based
they mayn't have based	I mayn't have been basing
you mayn't have been basing
he mayn't have been basing
we mayn't have been basing
you mayn't have been basing
they mayn't have been basing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
may I base?
may you base?
may he base?
may we base?
may you base?
may they base? 	may I be basing?
may you be basing?
may he be basing?
may we be basing?
may you be basing?
may they be basing? 	may I have based?
may you have based?
may he have based?
may we have based?
may you have based?
may they have based? 	may I have been basing?
may you have been basing?
may he have been basing?
may we have been basing?
may you have been basing?
may they have been basing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mayn't I base?
mayn't you base?
mayn't he base?
mayn't we base?
mayn't you base?
mayn't they base? 	mayn't I be basing?
mayn't you be basing?
mayn't he be basing?
mayn't we be basing?
mayn't you be basing?
mayn't they be basing? 	mayn't I have based?
mayn't you have based?
mayn't he have based?
mayn't we have based?
mayn't you have based?
mayn't they have based? 	mayn't I have been basing?
mayn't you have been basing?
mayn't he have been basing?
mayn't we have been basing?
mayn't you have been basing?
mayn't they have been basing?