English verb conjugation
SHOULD TREBLE

Regular verb: treble - trebled - trebled

Affirmation

Simple form	V-ing form
I'd treble you'd treble he'd treble we'd treble you'd treble they'd treble	I'd be trebling you'd be trebling he'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 he 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 he 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 he 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 he 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 he 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 he 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 he treble? should we treble? should you treble? should they treble?	should I be trebling? should you be trebling? should he 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 he 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 he 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 he 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 he 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 he 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 he have been trebling? shouldn't we have been trebling? shouldn't you have been trebling? shouldn't they have been trebling?