English verb conjugation
SHOULD STAGNATE

Regular verb: stagnate - stagnated - stagnated

Affirmation

Simple form	V-ing form
I'd stagnate you'd stagnate he'd stagnate we'd stagnate you'd stagnate they'd stagnate	I'd be stagnating you'd be stagnating he'd be stagnating we'd be stagnating you'd be stagnating they'd be stagnating
Perfect	V-ing perfect
I should've stagnated you should've stagnated he should've stagnated we should've stagnated you should've stagnated they should've stagnated	I should've been stagnating you should've been stagnating he should've been stagnating we should've been stagnating you should've been stagnating they should've been stagnating

Negation

Simple form	V-ing form
I shouldn't stagnate you shouldn't stagnate he shouldn't stagnate we shouldn't stagnate you shouldn't stagnate they shouldn't stagnate	I shouldn't be stagnating you shouldn't be stagnating he shouldn't be stagnating we shouldn't be stagnating you shouldn't be stagnating they shouldn't be stagnating
Perfect	V-ing perfect
I shouldn't have stagnated you shouldn't have stagnated he shouldn't have stagnated we shouldn't have stagnated you shouldn't have stagnated they shouldn't have stagnated	I shouldn't have been stagnating you shouldn't have been stagnating he shouldn't have been stagnating we shouldn't have been stagnating you shouldn't have been stagnating they shouldn't have been stagnating

Interrogative form

Simple form	V-ing form
should I stagnate? should you stagnate? should he stagnate? should we stagnate? should you stagnate? should they stagnate?	should I be stagnating? should you be stagnating? should he be stagnating? should we be stagnating? should you be stagnating? should they be stagnating?
Perfect	V-ing perfect
should I have stagnated? should you have stagnated? should he have stagnated? should we have stagnated? should you have stagnated? should they have stagnated?	should I have been stagnating? should you have been stagnating? should he have been stagnating? should we have been stagnating? should you have been stagnating? should they have been stagnating?

Interro-negative form

Simple form	V-ing form
shouldn't I stagnate? shouldn't you stagnate? shouldn't he stagnate? shouldn't we stagnate? shouldn't you stagnate? shouldn't they stagnate?	shouldn't I be stagnating? shouldn't you be stagnating? shouldn't he be stagnating? shouldn't we be stagnating? shouldn't you be stagnating? shouldn't they be stagnating?
Perfect	V-ing perfect
shouldn't I have stagnated? shouldn't you have stagnated? shouldn't he have stagnated? shouldn't we have stagnated? shouldn't you have stagnated? shouldn't they have stagnated?	shouldn't I have been stagnating? shouldn't you have been stagnating? shouldn't he have been stagnating? shouldn't we have been stagnating? shouldn't you have been stagnating? shouldn't they have been stagnating?