English verb conjugation
SHOULD TIER

Regular verb: tier - tiered - tiered

Affirmation

Simple form	V-ing form
I'd tier you'd tier he'd tier we'd tier you'd tier they'd tier	I'd be tiering you'd be tiering he'd be tiering we'd be tiering you'd be tiering they'd be tiering
Perfect	V-ing perfect
I should've tiered you should've tiered he should've tiered we should've tiered you should've tiered they should've tiered	I should've been tiering you should've been tiering he should've been tiering we should've been tiering you should've been tiering they should've been tiering

Negation

Simple form	V-ing form
I shouldn't tier you shouldn't tier he shouldn't tier we shouldn't tier you shouldn't tier they shouldn't tier	I shouldn't be tiering you shouldn't be tiering he shouldn't be tiering we shouldn't be tiering you shouldn't be tiering they shouldn't be tiering
Perfect	V-ing perfect
I shouldn't have tiered you shouldn't have tiered he shouldn't have tiered we shouldn't have tiered you shouldn't have tiered they shouldn't have tiered	I shouldn't have been tiering you shouldn't have been tiering he shouldn't have been tiering we shouldn't have been tiering you shouldn't have been tiering they shouldn't have been tiering

Interrogative form

Simple form	V-ing form
should I tier? should you tier? should he tier? should we tier? should you tier? should they tier?	should I be tiering? should you be tiering? should he be tiering? should we be tiering? should you be tiering? should they be tiering?
Perfect	V-ing perfect
should I have tiered? should you have tiered? should he have tiered? should we have tiered? should you have tiered? should they have tiered?	should I have been tiering? should you have been tiering? should he have been tiering? should we have been tiering? should you have been tiering? should they have been tiering?

Interro-negative form

Simple form	V-ing form
shouldn't I tier? shouldn't you tier? shouldn't he tier? shouldn't we tier? shouldn't you tier? shouldn't they tier?	shouldn't I be tiering? shouldn't you be tiering? shouldn't he be tiering? shouldn't we be tiering? shouldn't you be tiering? shouldn't they be tiering?
Perfect	V-ing perfect
shouldn't I have tiered? shouldn't you have tiered? shouldn't he have tiered? shouldn't we have tiered? shouldn't you have tiered? shouldn't they have tiered?	shouldn't I have been tiering? shouldn't you have been tiering? shouldn't he have been tiering? shouldn't we have been tiering? shouldn't you have been tiering? shouldn't they have been tiering?