English verb conjugation
SHOULD CROAK

Regular verb: croak - croaked - croaked

Affirmation

Simple form	V-ing form
I should croak you should croak he should croak we should croak you should croak they should croak	I should be croaking you should be croaking he should be croaking we should be croaking you should be croaking they should be croaking
Perfect	V-ing perfect
I should have croaked you should have croaked he should have croaked we should have croaked you should have croaked they should have croaked	I should have been croaking you should have been croaking he should have been croaking we should have been croaking you should have been croaking they should have been croaking

Negation

Simple form	V-ing form
I should not croak you should not croak he should not croak we should not croak you should not croak they should not croak	I should not be croaking you should not be croaking he should not be croaking we should not be croaking you should not be croaking they should not be croaking
Perfect	V-ing perfect
I should not have croaked you should not have croaked he should not have croaked we should not have croaked you should not have croaked they should not have croaked	I should not have been croaking you should not have been croaking he should not have been croaking we should not have been croaking you should not have been croaking they should not have been croaking

Interrogative form

Simple form	V-ing form
should I croak? should you croak? should he croak? should we croak? should you croak? should they croak?	should I be croaking? should you be croaking? should he be croaking? should we be croaking? should you be croaking? should they be croaking?
Perfect	V-ing perfect
should I have croaked? should you have croaked? should he have croaked? should we have croaked? should you have croaked? should they have croaked?	should I have been croaking? should you have been croaking? should he have been croaking? should we have been croaking? should you have been croaking? should they have been croaking?

Interro-negative form

Simple form	V-ing form
should I not croak? should you not croak? should he not croak? should we not croak? should you not croak? should they not croak?	should I not be croaking? should you not be croaking? should he not be croaking? should we not be croaking? should you not be croaking? should they not be croaking?
Perfect	V-ing perfect
should I not have croaked? should you not have croaked? should he not have croaked? should we not have croaked? should you not have croaked? should they not have croaked?	should I not have been croaking? should you not have been croaking? should he not have been croaking? should we not have been croaking? should you not have been croaking? should they not have been croaking?