may drain
Verbo regular: drain - drained- drained

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may drain
you may drain
he may drain
we may drain
you may drain
they may drain 	I may be draining
you may be draining
he may be draining
we may be draining
you may be draining
they may be draining	I may have drained
you may have drained
he may have drained
we may have drained
you may have drained
they may have drained	I may have been draining
you may have been draining
he may have been draining
we may have been draining
you may have been draining
they may have been draining	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mayn't drain
you mayn't drain
he mayn't drain
we mayn't drain
you mayn't drain
they mayn't drain 	I mayn't be draining
you mayn't be draining
he mayn't be draining
we mayn't be draining
you mayn't be draining
they mayn't be draining	I mayn't have drained
you mayn't have drained
he mayn't have drained
we mayn't have drained
you mayn't have drained
they mayn't have drained	I mayn't have been draining
you mayn't have been draining
he mayn't have been draining
we mayn't have been draining
you mayn't have been draining
they mayn't have been draining	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I drain?
may you drain?
may he drain?
may we drain?
may you drain?
may they drain? 	may I be draining?
may you be draining?
may he be draining?
may we be draining?
may you be draining?
may they be draining? 	may I have drained?
may you have drained?
may he have drained?
may we have drained?
may you have drained?
may they have drained? 	may I have been draining?
may you have been draining?
may he have been draining?
may we have been draining?
may you have been draining?
may they have been draining? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mayn't I drain?
mayn't you drain?
mayn't he drain?
mayn't we drain?
mayn't you drain?
mayn't they drain? 	mayn't I be draining?
mayn't you be draining?
mayn't he be draining?
mayn't we be draining?
mayn't you be draining?
mayn't they be draining? 	mayn't I have drained?
mayn't you have drained?
mayn't he have drained?
mayn't we have drained?
mayn't you have drained?
mayn't they have drained? 	mayn't I have been draining?
mayn't you have been draining?
mayn't he have been draining?
mayn't we have been draining?
mayn't you have been draining?
mayn't they have been draining?