English verb conjugation
SHOULD COUNTERSINK

Irregular verb: countersink - countersank - countersunk

Affirmation

Simple form	V-ing form
I'd countersink you'd countersink he'd countersink we'd countersink you'd countersink they'd countersink	I'd be countersinking you'd be countersinking he'd be countersinking we'd be countersinking you'd be countersinking they'd be countersinking
Perfect	V-ing perfect
I should've countersunk you should've countersunk he should've countersunk we should've countersunk you should've countersunk they should've countersunk	I should've been countersinking you should've been countersinking he should've been countersinking we should've been countersinking you should've been countersinking they should've been countersinking

Negation

Simple form	V-ing form
I shouldn't countersink you shouldn't countersink he shouldn't countersink we shouldn't countersink you shouldn't countersink they shouldn't countersink	I shouldn't be countersinking you shouldn't be countersinking he shouldn't be countersinking we shouldn't be countersinking you shouldn't be countersinking they shouldn't be countersinking
Perfect	V-ing perfect
I shouldn't have countersunk you shouldn't have countersunk he shouldn't have countersunk we shouldn't have countersunk you shouldn't have countersunk they shouldn't have countersunk	I shouldn't have been countersinking you shouldn't have been countersinking he shouldn't have been countersinking we shouldn't have been countersinking you shouldn't have been countersinking they shouldn't have been countersinking

Interrogative form

Simple form	V-ing form
should I countersink? should you countersink? should he countersink? should we countersink? should you countersink? should they countersink?	should I be countersinking? should you be countersinking? should he be countersinking? should we be countersinking? should you be countersinking? should they be countersinking?
Perfect	V-ing perfect
should I have countersunk? should you have countersunk? should he have countersunk? should we have countersunk? should you have countersunk? should they have countersunk?	should I have been countersinking? should you have been countersinking? should he have been countersinking? should we have been countersinking? should you have been countersinking? should they have been countersinking?

Interro-negative form

Simple form	V-ing form
shouldn't I countersink? shouldn't you countersink? shouldn't he countersink? shouldn't we countersink? shouldn't you countersink? shouldn't they countersink?	shouldn't I be countersinking? shouldn't you be countersinking? shouldn't he be countersinking? shouldn't we be countersinking? shouldn't you be countersinking? shouldn't they be countersinking?
Perfect	V-ing perfect
shouldn't I have countersunk? shouldn't you have countersunk? shouldn't he have countersunk? shouldn't we have countersunk? shouldn't you have countersunk? shouldn't they have countersunk?	shouldn't I have been countersinking? shouldn't you have been countersinking? shouldn't he have been countersinking? shouldn't we have been countersinking? shouldn't you have been countersinking? shouldn't they have been countersinking?