English verb conjugation
SHOULD HARROW

Regular verb: harrow - harrowed - harrowed

Affirmation

Simple form	V-ing form
I'd harrow you'd harrow she'd harrow we'd harrow you'd harrow they'd harrow	I'd be harrowing you'd be harrowing she'd be harrowing we'd be harrowing you'd be harrowing they'd be harrowing
Perfect	V-ing perfect
I should've harrowed you should've harrowed she should've harrowed we should've harrowed you should've harrowed they should've harrowed	I should've been harrowing you should've been harrowing she should've been harrowing we should've been harrowing you should've been harrowing they should've been harrowing

Negation

Simple form	V-ing form
I shouldn't harrow you shouldn't harrow she shouldn't harrow we shouldn't harrow you shouldn't harrow they shouldn't harrow	I shouldn't be harrowing you shouldn't be harrowing she shouldn't be harrowing we shouldn't be harrowing you shouldn't be harrowing they shouldn't be harrowing
Perfect	V-ing perfect
I shouldn't have harrowed you shouldn't have harrowed she shouldn't have harrowed we shouldn't have harrowed you shouldn't have harrowed they shouldn't have harrowed	I shouldn't have been harrowing you shouldn't have been harrowing she shouldn't have been harrowing we shouldn't have been harrowing you shouldn't have been harrowing they shouldn't have been harrowing

Interrogative form

Simple form	V-ing form
should I harrow? should you harrow? should she harrow? should we harrow? should you harrow? should they harrow?	should I be harrowing? should you be harrowing? should she be harrowing? should we be harrowing? should you be harrowing? should they be harrowing?
Perfect	V-ing perfect
should I have harrowed? should you have harrowed? should she have harrowed? should we have harrowed? should you have harrowed? should they have harrowed?	should I have been harrowing? should you have been harrowing? should she have been harrowing? should we have been harrowing? should you have been harrowing? should they have been harrowing?

Interro-negative form

Simple form	V-ing form
shouldn't I harrow? shouldn't you harrow? shouldn't she harrow? shouldn't we harrow? shouldn't you harrow? shouldn't they harrow?	shouldn't I be harrowing? shouldn't you be harrowing? shouldn't she be harrowing? shouldn't we be harrowing? shouldn't you be harrowing? shouldn't they be harrowing?
Perfect	V-ing perfect
shouldn't I have harrowed? shouldn't you have harrowed? shouldn't she have harrowed? shouldn't we have harrowed? shouldn't you have harrowed? shouldn't they have harrowed?	shouldn't I have been harrowing? shouldn't you have been harrowing? shouldn't she have been harrowing? shouldn't we have been harrowing? shouldn't you have been harrowing? shouldn't they have been harrowing?