English verb conjugation
SHOULD COUCH

Regular verb: couch - couched - couched

Affirmation

Simple form	V-ing form
I'd couch you'd couch he'd couch we'd couch you'd couch they'd couch	I'd be couching you'd be couching he'd be couching we'd be couching you'd be couching they'd be couching
Perfect	V-ing perfect
I should've couched you should've couched he should've couched we should've couched you should've couched they should've couched	I should've been couching you should've been couching he should've been couching we should've been couching you should've been couching they should've been couching

Negation

Simple form	V-ing form
I shouldn't couch you shouldn't couch he shouldn't couch we shouldn't couch you shouldn't couch they shouldn't couch	I shouldn't be couching you shouldn't be couching he shouldn't be couching we shouldn't be couching you shouldn't be couching they shouldn't be couching
Perfect	V-ing perfect
I shouldn't have couched you shouldn't have couched he shouldn't have couched we shouldn't have couched you shouldn't have couched they shouldn't have couched	I shouldn't have been couching you shouldn't have been couching he shouldn't have been couching we shouldn't have been couching you shouldn't have been couching they shouldn't have been couching

Interrogative form

Simple form	V-ing form
should I couch? should you couch? should he couch? should we couch? should you couch? should they couch?	should I be couching? should you be couching? should he be couching? should we be couching? should you be couching? should they be couching?
Perfect	V-ing perfect
should I have couched? should you have couched? should he have couched? should we have couched? should you have couched? should they have couched?	should I have been couching? should you have been couching? should he have been couching? should we have been couching? should you have been couching? should they have been couching?

Interro-negative form

Simple form	V-ing form
shouldn't I couch? shouldn't you couch? shouldn't he couch? shouldn't we couch? shouldn't you couch? shouldn't they couch?	shouldn't I be couching? shouldn't you be couching? shouldn't he be couching? shouldn't we be couching? shouldn't you be couching? shouldn't they be couching?
Perfect	V-ing perfect
shouldn't I have couched? shouldn't you have couched? shouldn't he have couched? shouldn't we have couched? shouldn't you have couched? shouldn't they have couched?	shouldn't I have been couching? shouldn't you have been couching? shouldn't he have been couching? shouldn't we have been couching? shouldn't you have been couching? shouldn't they have been couching?