can sink
Verbo irregular: sink - sank, sunk- sunk

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can sink
you can sink
he can sink
we can sink
you can sink
they can sink 	I can be sinking
you can be sinking
he can be sinking
we can be sinking
you can be sinking
they can be sinking	I can have sunk
you can have sunk
he can have sunk
we can have sunk
you can have sunk
they can have sunk	I can have been sinking
you can have been sinking
he can have been sinking
we can have been sinking
you can have been sinking
they can have been sinking	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can't sink
you can't sink
he can't sink
we can't sink
you can't sink
they can't sink 	I can't be sinking
you can't be sinking
he can't be sinking
we can't be sinking
you can't be sinking
they can't be sinking	I can't have sunk
you can't have sunk
he can't have sunk
we can't have sunk
you can't have sunk
they can't have sunk	I can't have been sinking
you can't have been sinking
he can't have been sinking
we can't have been sinking
you can't have been sinking
they can't have been sinking	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I sink?
can you sink?
can he sink?
can we sink?
can you sink?
can they sink? 	can I be sinking?
can you be sinking?
can he be sinking?
can we be sinking?
can you be sinking?
can they be sinking? 	can I have sunk?
can you have sunk?
can he have sunk?
can we have sunk?
can you have sunk?
can they have sunk? 	can I have been sinking?
can you have been sinking?
can he have been sinking?
can we have been sinking?
can you have been sinking?
can they have been sinking? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can't I sink?
can't you sink?
can't he sink?
can't we sink?
can't you sink?
can't they sink? 	can't I be sinking?
can't you be sinking?
can't he be sinking?
can't we be sinking?
can't you be sinking?
can't they be sinking? 	can't I have sunk?
can't you have sunk?
can't he have sunk?
can't we have sunk?
can't you have sunk?
can't they have sunk? 	can't I have been sinking?
can't you have been sinking?
can't he have been sinking?
can't we have been sinking?
can't you have been sinking?
can't they have been sinking?