English verb conjugation
SHOULD THRESH

Regular verb: thresh - threshed - threshed

Affirmation

Simple form	V-ing form
I should thresh you should thresh she should thresh we should thresh you should thresh they should thresh	I should be threshing you should be threshing she should be threshing we should be threshing you should be threshing they should be threshing
Perfect	V-ing perfect
I should have threshed you should have threshed she should have threshed we should have threshed you should have threshed they should have threshed	I should have been threshing you should have been threshing she should have been threshing we should have been threshing you should have been threshing they should have been threshing

Negation

Simple form	V-ing form
I should not thresh you should not thresh she should not thresh we should not thresh you should not thresh they should not thresh	I should not be threshing you should not be threshing she should not be threshing we should not be threshing you should not be threshing they should not be threshing
Perfect	V-ing perfect
I should not have threshed you should not have threshed she should not have threshed we should not have threshed you should not have threshed they should not have threshed	I should not have been threshing you should not have been threshing she should not have been threshing we should not have been threshing you should not have been threshing they should not have been threshing

Interrogative form

Simple form	V-ing form
should I thresh? should you thresh? should she thresh? should we thresh? should you thresh? should they thresh?	should I be threshing? should you be threshing? should she be threshing? should we be threshing? should you be threshing? should they be threshing?
Perfect	V-ing perfect
should I have threshed? should you have threshed? should she have threshed? should we have threshed? should you have threshed? should they have threshed?	should I have been threshing? should you have been threshing? should she have been threshing? should we have been threshing? should you have been threshing? should they have been threshing?

Interro-negative form

Simple form	V-ing form
should I not thresh? should you not thresh? should she not thresh? should we not thresh? should you not thresh? should they not thresh?	should I not be threshing? should you not be threshing? should she not be threshing? should we not be threshing? should you not be threshing? should they not be threshing?
Perfect	V-ing perfect
should I not have threshed? should you not have threshed? should she not have threshed? should we not have threshed? should you not have threshed? should they not have threshed?	should I not have been threshing? should you not have been threshing? should she not have been threshing? should we not have been threshing? should you not have been threshing? should they not have been threshing?