English verb conjugation
SHOULD FILL

Regular verb: fill - filled - filled

Affirmation

Simple form	V-ing form
I'd fill you'd fill he'd fill we'd fill you'd fill they'd fill	I'd be filling you'd be filling he'd be filling we'd be filling you'd be filling they'd be filling
Perfect	V-ing perfect
I should've filled you should've filled he should've filled we should've filled you should've filled they should've filled	I should've been filling you should've been filling he should've been filling we should've been filling you should've been filling they should've been filling

Negation

Simple form	V-ing form
I shouldn't fill you shouldn't fill he shouldn't fill we shouldn't fill you shouldn't fill they shouldn't fill	I shouldn't be filling you shouldn't be filling he shouldn't be filling we shouldn't be filling you shouldn't be filling they shouldn't be filling
Perfect	V-ing perfect
I shouldn't have filled you shouldn't have filled he shouldn't have filled we shouldn't have filled you shouldn't have filled they shouldn't have filled	I shouldn't have been filling you shouldn't have been filling he shouldn't have been filling we shouldn't have been filling you shouldn't have been filling they shouldn't have been filling

Interrogative form

Simple form	V-ing form
should I fill? should you fill? should he fill? should we fill? should you fill? should they fill?	should I be filling? should you be filling? should he be filling? should we be filling? should you be filling? should they be filling?
Perfect	V-ing perfect
should I have filled? should you have filled? should he have filled? should we have filled? should you have filled? should they have filled?	should I have been filling? should you have been filling? should he have been filling? should we have been filling? should you have been filling? should they have been filling?

Interro-negative form

Simple form	V-ing form
shouldn't I fill? shouldn't you fill? shouldn't he fill? shouldn't we fill? shouldn't you fill? shouldn't they fill?	shouldn't I be filling? shouldn't you be filling? shouldn't he be filling? shouldn't we be filling? shouldn't you be filling? shouldn't they be filling?
Perfect	V-ing perfect
shouldn't I have filled? shouldn't you have filled? shouldn't he have filled? shouldn't we have filled? shouldn't you have filled? shouldn't they have filled?	shouldn't I have been filling? shouldn't you have been filling? shouldn't he have been filling? shouldn't we have been filling? shouldn't you have been filling? shouldn't they have been filling?