English verb conjugation
SHOULD GRATULATE

Regular verb: gratulate - gratulated - gratulated

Affirmation

Simple form	V-ing form
I'd gratulate you'd gratulate she'd gratulate we'd gratulate you'd gratulate they'd gratulate	I'd be gratulating you'd be gratulating she'd be gratulating we'd be gratulating you'd be gratulating they'd be gratulating
Perfect	V-ing perfect
I should've gratulated you should've gratulated she should've gratulated we should've gratulated you should've gratulated they should've gratulated	I should've been gratulating you should've been gratulating she should've been gratulating we should've been gratulating you should've been gratulating they should've been gratulating

Negation

Simple form	V-ing form
I shouldn't gratulate you shouldn't gratulate she shouldn't gratulate we shouldn't gratulate you shouldn't gratulate they shouldn't gratulate	I shouldn't be gratulating you shouldn't be gratulating she shouldn't be gratulating we shouldn't be gratulating you shouldn't be gratulating they shouldn't be gratulating
Perfect	V-ing perfect
I shouldn't have gratulated you shouldn't have gratulated she shouldn't have gratulated we shouldn't have gratulated you shouldn't have gratulated they shouldn't have gratulated	I shouldn't have been gratulating you shouldn't have been gratulating she shouldn't have been gratulating we shouldn't have been gratulating you shouldn't have been gratulating they shouldn't have been gratulating

Interrogative form

Simple form	V-ing form
should I gratulate? should you gratulate? should she gratulate? should we gratulate? should you gratulate? should they gratulate?	should I be gratulating? should you be gratulating? should she be gratulating? should we be gratulating? should you be gratulating? should they be gratulating?
Perfect	V-ing perfect
should I have gratulated? should you have gratulated? should she have gratulated? should we have gratulated? should you have gratulated? should they have gratulated?	should I have been gratulating? should you have been gratulating? should she have been gratulating? should we have been gratulating? should you have been gratulating? should they have been gratulating?

Interro-negative form

Simple form	V-ing form
shouldn't I gratulate? shouldn't you gratulate? shouldn't she gratulate? shouldn't we gratulate? shouldn't you gratulate? shouldn't they gratulate?	shouldn't I be gratulating? shouldn't you be gratulating? shouldn't she be gratulating? shouldn't we be gratulating? shouldn't you be gratulating? shouldn't they be gratulating?
Perfect	V-ing perfect
shouldn't I have gratulated? shouldn't you have gratulated? shouldn't she have gratulated? shouldn't we have gratulated? shouldn't you have gratulated? shouldn't they have gratulated?	shouldn't I have been gratulating? shouldn't you have been gratulating? shouldn't she have been gratulating? shouldn't we have been gratulating? shouldn't you have been gratulating? shouldn't they have been gratulating?