English verb conjugation
SHOULD FILL

Regular verb: fill - filled - filled

Affirmation

Simple form	V-ing form
I'd fill you'd fill she'd fill we'd fill you'd fill they'd fill	I'd be filling you'd be filling she'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 she 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 she 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 she 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 she 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 she 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 she 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 she fill? should we fill? should you fill? should they fill?	should I be filling? should you be filling? should she 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 she 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 she 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 she 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 she 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 she 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 she have been filling? shouldn't we have been filling? shouldn't you have been filling? shouldn't they have been filling?