English verb conjugation
SHOULD FROG

Regular verb: frog - froged - froged

Affirmation

Simple form	V-ing form
I'd frog you'd frog he'd frog we'd frog you'd frog they'd frog	I'd be froging you'd be froging he'd be froging we'd be froging you'd be froging they'd be froging
Perfect	V-ing perfect
I should've froged you should've froged he should've froged we should've froged you should've froged they should've froged	I should've been froging you should've been froging he should've been froging we should've been froging you should've been froging they should've been froging

Negation

Simple form	V-ing form
I shouldn't frog you shouldn't frog he shouldn't frog we shouldn't frog you shouldn't frog they shouldn't frog	I shouldn't be froging you shouldn't be froging he shouldn't be froging we shouldn't be froging you shouldn't be froging they shouldn't be froging
Perfect	V-ing perfect
I shouldn't have froged you shouldn't have froged he shouldn't have froged we shouldn't have froged you shouldn't have froged they shouldn't have froged	I shouldn't have been froging you shouldn't have been froging he shouldn't have been froging we shouldn't have been froging you shouldn't have been froging they shouldn't have been froging

Interrogative form

Simple form	V-ing form
should I frog? should you frog? should he frog? should we frog? should you frog? should they frog?	should I be froging? should you be froging? should he be froging? should we be froging? should you be froging? should they be froging?
Perfect	V-ing perfect
should I have froged? should you have froged? should he have froged? should we have froged? should you have froged? should they have froged?	should I have been froging? should you have been froging? should he have been froging? should we have been froging? should you have been froging? should they have been froging?

Interro-negative form

Simple form	V-ing form
shouldn't I frog? shouldn't you frog? shouldn't he frog? shouldn't we frog? shouldn't you frog? shouldn't they frog?	shouldn't I be froging? shouldn't you be froging? shouldn't he be froging? shouldn't we be froging? shouldn't you be froging? shouldn't they be froging?
Perfect	V-ing perfect
shouldn't I have froged? shouldn't you have froged? shouldn't he have froged? shouldn't we have froged? shouldn't you have froged? shouldn't they have froged?	shouldn't I have been froging? shouldn't you have been froging? shouldn't he have been froging? shouldn't we have been froging? shouldn't you have been froging? shouldn't they have been froging?