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
he may countersink
we may countersink
you may countersink
they may countersink 	I may be countersinking
you may be countersinking
he may be countersinking
we may be countersinking
you may be countersinking
they may be countersinking	I may have countersunk
you may have countersunk
he 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
he 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 may not countersink
you may not countersink
he may not countersink
we may not countersink
you may not countersink
they may not countersink 	I may not be countersinking
you may not be countersinking
he may not be countersinking
we may not be countersinking
you may not be countersinking
they may not be countersinking	I may not have countersunk
you may not have countersunk
he may not have countersunk
we may not have countersunk
you may not have countersunk
they may not have countersunk	I may not have been countersinking
you may not have been countersinking
he may not have been countersinking
we may not have been countersinking
you may not have been countersinking
they may not have been countersinking	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
may I countersink?
may you countersink?
may he countersink?
may we countersink?
may you countersink?
may they countersink? 	may I be countersinking?
may you be countersinking?
may he be countersinking?
may we be countersinking?
may you be countersinking?
may they be countersinking? 	may I have countersunk?
may you have countersunk?
may he 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 he 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 	
may I not countersink?
may you not countersink?
may he not countersink?
may we not countersink?
may you not countersink?
may they not countersink? 	may I not be countersinking?
may you not be countersinking?
may he not be countersinking?
may we not be countersinking?
may you not be countersinking?
may they not be countersinking? 	may I not have countersunk?
may you not have countersunk?
may he not have countersunk?
may we not have countersunk?
may you not have countersunk?
may they not have countersunk? 	may I not have been countersinking?
may you not have been countersinking?
may he not have been countersinking?
may we not have been countersinking?
may you not have been countersinking?
may they not have been countersinking?