should sink
Irregular verb: sink - sank, sunk- sunk

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should sink
you should sink
she should sink
we should sink
you should sink
they should sink 	I should be sinking
you should be sinking
she should be sinking
we should be sinking
you should be sinking
they should be sinking	I should have sunk
you should have sunk
she should have sunk
we should have sunk
you should have sunk
they should have sunk	I should have been sinking
you should have been sinking
she should have been sinking
we should have been sinking
you should have been sinking
they should have been sinking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not sink
you should not sink
she should not sink
we should not sink
you should not sink
they should not sink 	I should not be sinking
you should not be sinking
she should not be sinking
we should not be sinking
you should not be sinking
they should not be sinking	I should not have sunk
you should not have sunk
she should not have sunk
we should not have sunk
you should not have sunk
they should not have sunk	I should not have been sinking
you should not have been sinking
she should not have been sinking
we should not have been sinking
you should not have been sinking
they should not have been sinking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I sink?
should you sink?
should she sink?
should we sink?
should you sink?
should they sink? 	should I be sinking?
should you be sinking?
should she be sinking?
should we be sinking?
should you be sinking?
should they be sinking? 	should I have sunk?
should you have sunk?
should she have sunk?
should we have sunk?
should you have sunk?
should they have sunk? 	should I have been sinking?
should you have been sinking?
should she have been sinking?
should we have been sinking?
should you have been sinking?
should they have been sinking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not sink?
should you not sink?
should she not sink?
should we not sink?
should you not sink?
should they not sink? 	should I not be sinking?
should you not be sinking?
should she not be sinking?
should we not be sinking?
should you not be sinking?
should they not be sinking? 	should I not have sunk?
should you not have sunk?
should she not have sunk?
should we not have sunk?
should you not have sunk?
should they not have sunk? 	should I not have been sinking?
should you not have been sinking?
should she not have been sinking?
should we not have been sinking?
should you not have been sinking?
should they not have been sinking?