English verb conjugation
SHOULD SUBTEND

Regular verb: subtend - subtended - subtended

Affirmation

Simple form	V-ing form
I'd subtend you'd subtend she'd subtend we'd subtend you'd subtend they'd subtend	I'd be subtending you'd be subtending she'd be subtending we'd be subtending you'd be subtending they'd be subtending
Perfect	V-ing perfect
I should've subtended you should've subtended she should've subtended we should've subtended you should've subtended they should've subtended	I should've been subtending you should've been subtending she should've been subtending we should've been subtending you should've been subtending they should've been subtending

Negation

Simple form	V-ing form
I shouldn't subtend you shouldn't subtend she shouldn't subtend we shouldn't subtend you shouldn't subtend they shouldn't subtend	I shouldn't be subtending you shouldn't be subtending she shouldn't be subtending we shouldn't be subtending you shouldn't be subtending they shouldn't be subtending
Perfect	V-ing perfect
I shouldn't have subtended you shouldn't have subtended she shouldn't have subtended we shouldn't have subtended you shouldn't have subtended they shouldn't have subtended	I shouldn't have been subtending you shouldn't have been subtending she shouldn't have been subtending we shouldn't have been subtending you shouldn't have been subtending they shouldn't have been subtending

Interrogative form

Simple form	V-ing form
should I subtend? should you subtend? should she subtend? should we subtend? should you subtend? should they subtend?	should I be subtending? should you be subtending? should she be subtending? should we be subtending? should you be subtending? should they be subtending?
Perfect	V-ing perfect
should I have subtended? should you have subtended? should she have subtended? should we have subtended? should you have subtended? should they have subtended?	should I have been subtending? should you have been subtending? should she have been subtending? should we have been subtending? should you have been subtending? should they have been subtending?

Interro-negative form

Simple form	V-ing form
shouldn't I subtend? shouldn't you subtend? shouldn't she subtend? shouldn't we subtend? shouldn't you subtend? shouldn't they subtend?	shouldn't I be subtending? shouldn't you be subtending? shouldn't she be subtending? shouldn't we be subtending? shouldn't you be subtending? shouldn't they be subtending?
Perfect	V-ing perfect
shouldn't I have subtended? shouldn't you have subtended? shouldn't she have subtended? shouldn't we have subtended? shouldn't you have subtended? shouldn't they have subtended?	shouldn't I have been subtending? shouldn't you have been subtending? shouldn't she have been subtending? shouldn't we have been subtending? shouldn't you have been subtending? shouldn't they have been subtending?