English verb conjugation
SHOULD TREBLE

Regular verb: treble - trebled - trebled

Affirmation

Simple form	V-ing form
I'd treble you'd treble she'd treble we'd treble you'd treble they'd treble	I'd be trebling you'd be trebling she'd be trebling we'd be trebling you'd be trebling they'd be trebling
Perfect	V-ing perfect
I should've trebled you should've trebled she should've trebled we should've trebled you should've trebled they should've trebled	I should've been trebling you should've been trebling she should've been trebling we should've been trebling you should've been trebling they should've been trebling

Negation

Simple form	V-ing form
I shouldn't treble you shouldn't treble she shouldn't treble we shouldn't treble you shouldn't treble they shouldn't treble	I shouldn't be trebling you shouldn't be trebling she shouldn't be trebling we shouldn't be trebling you shouldn't be trebling they shouldn't be trebling
Perfect	V-ing perfect
I shouldn't have trebled you shouldn't have trebled she shouldn't have trebled we shouldn't have trebled you shouldn't have trebled they shouldn't have trebled	I shouldn't have been trebling you shouldn't have been trebling she shouldn't have been trebling we shouldn't have been trebling you shouldn't have been trebling they shouldn't have been trebling

Interrogative form

Simple form	V-ing form
should I treble? should you treble? should she treble? should we treble? should you treble? should they treble?	should I be trebling? should you be trebling? should she be trebling? should we be trebling? should you be trebling? should they be trebling?
Perfect	V-ing perfect
should I have trebled? should you have trebled? should she have trebled? should we have trebled? should you have trebled? should they have trebled?	should I have been trebling? should you have been trebling? should she have been trebling? should we have been trebling? should you have been trebling? should they have been trebling?

Interro-negative form

Simple form	V-ing form
shouldn't I treble? shouldn't you treble? shouldn't she treble? shouldn't we treble? shouldn't you treble? shouldn't they treble?	shouldn't I be trebling? shouldn't you be trebling? shouldn't she be trebling? shouldn't we be trebling? shouldn't you be trebling? shouldn't they be trebling?
Perfect	V-ing perfect
shouldn't I have trebled? shouldn't you have trebled? shouldn't she have trebled? shouldn't we have trebled? shouldn't you have trebled? shouldn't they have trebled?	shouldn't I have been trebling? shouldn't you have been trebling? shouldn't she have been trebling? shouldn't we have been trebling? shouldn't you have been trebling? shouldn't they have been trebling?