English verb conjugation
SHOULD PLANK

Regular verb: plank - planked - planked

Affirmation

Simple form	V-ing form
I'd plank you'd plank she'd plank we'd plank you'd plank they'd plank	I'd be planking you'd be planking she'd be planking we'd be planking you'd be planking they'd be planking
Perfect	V-ing perfect
I should've planked you should've planked she should've planked we should've planked you should've planked they should've planked	I should've been planking you should've been planking she should've been planking we should've been planking you should've been planking they should've been planking

Negation

Simple form	V-ing form
I shouldn't plank you shouldn't plank she shouldn't plank we shouldn't plank you shouldn't plank they shouldn't plank	I shouldn't be planking you shouldn't be planking she shouldn't be planking we shouldn't be planking you shouldn't be planking they shouldn't be planking
Perfect	V-ing perfect
I shouldn't have planked you shouldn't have planked she shouldn't have planked we shouldn't have planked you shouldn't have planked they shouldn't have planked	I shouldn't have been planking you shouldn't have been planking she shouldn't have been planking we shouldn't have been planking you shouldn't have been planking they shouldn't have been planking

Interrogative form

Simple form	V-ing form
should I plank? should you plank? should she plank? should we plank? should you plank? should they plank?	should I be planking? should you be planking? should she be planking? should we be planking? should you be planking? should they be planking?
Perfect	V-ing perfect
should I have planked? should you have planked? should she have planked? should we have planked? should you have planked? should they have planked?	should I have been planking? should you have been planking? should she have been planking? should we have been planking? should you have been planking? should they have been planking?

Interro-negative form

Simple form	V-ing form
shouldn't I plank? shouldn't you plank? shouldn't she plank? shouldn't we plank? shouldn't you plank? shouldn't they plank?	shouldn't I be planking? shouldn't you be planking? shouldn't she be planking? shouldn't we be planking? shouldn't you be planking? shouldn't they be planking?
Perfect	V-ing perfect
shouldn't I have planked? shouldn't you have planked? shouldn't she have planked? shouldn't we have planked? shouldn't you have planked? shouldn't they have planked?	shouldn't I have been planking? shouldn't you have been planking? shouldn't she have been planking? shouldn't we have been planking? shouldn't you have been planking? shouldn't they have been planking?