may countersink
Verbe irrégulier : countersink - countersank- countersunk

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I may countersink
you may countersink
she may countersink
we may countersink
you may countersink
they may countersink 	I may be countersinking
you may be countersinking
she may be countersinking
we may be countersinking
you may be countersinking
they may be countersinking	I may have countersunk
you may have countersunk
she may have countersunk
we may have countersunk
you may have countersunk
they may have countersunk	I may have been countersinking
you may have been countersinking
she may have been countersinking
we may have been countersinking
you may have been countersinking
they may have been countersinking	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mayn't countersink
you mayn't countersink
she mayn't countersink
we mayn't countersink
you mayn't countersink
they mayn't countersink 	I mayn't be countersinking
you mayn't be countersinking
she mayn't be countersinking
we mayn't be countersinking
you mayn't be countersinking
they mayn't be countersinking	I mayn't have countersunk
you mayn't have countersunk
she mayn't have countersunk
we mayn't have countersunk
you mayn't have countersunk
they mayn't have countersunk	I mayn't have been countersinking
you mayn't have been countersinking
she mayn't have been countersinking
we mayn't have been countersinking
you mayn't have been countersinking
they mayn't have been countersinking	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
may I countersink?
may you countersink?
may she countersink?
may we countersink?
may you countersink?
may they countersink? 	may I be countersinking?
may you be countersinking?
may she be countersinking?
may we be countersinking?
may you be countersinking?
may they be countersinking? 	may I have countersunk?
may you have countersunk?
may she have countersunk?
may we have countersunk?
may you have countersunk?
may they have countersunk? 	may I have been countersinking?
may you have been countersinking?
may she have been countersinking?
may we have been countersinking?
may you have been countersinking?
may they have been countersinking? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mayn't I countersink?
mayn't you countersink?
mayn't she countersink?
mayn't we countersink?
mayn't you countersink?
mayn't they countersink? 	mayn't I be countersinking?
mayn't you be countersinking?
mayn't she be countersinking?
mayn't we be countersinking?
mayn't you be countersinking?
mayn't they be countersinking? 	mayn't I have countersunk?
mayn't you have countersunk?
mayn't she have countersunk?
mayn't we have countersunk?
mayn't you have countersunk?
mayn't they have countersunk? 	mayn't I have been countersinking?
mayn't you have been countersinking?
mayn't she have been countersinking?
mayn't we have been countersinking?
mayn't you have been countersinking?
mayn't they have been countersinking?