can countersink
Verbe irrégulier : countersink - countersank- countersunk

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

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

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

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