I'd be apperceiving you'd be apperceiving she'd be apperceiving we'd be apperceiving you'd be apperceiving they'd be apperceiving
Perfect
I should've apperceived you should've apperceived she should've apperceived we should've apperceived you should've apperceived they should've apperceived
V-ing perfect
I should've been apperceiving you should've been apperceiving she should've been apperceiving we should've been apperceiving you should've been apperceiving they should've been apperceiving
Negation
Simple form
I shouldn't apperceive you shouldn't apperceive she shouldn't apperceive we shouldn't apperceive you shouldn't apperceive they shouldn't apperceive
V-ing form
I shouldn't be apperceiving you shouldn't be apperceiving she shouldn't be apperceiving we shouldn't be apperceiving you shouldn't be apperceiving they shouldn't be apperceiving
Perfect
I shouldn't have apperceived you shouldn't have apperceived she shouldn't have apperceived we shouldn't have apperceived you shouldn't have apperceived they shouldn't have apperceived
V-ing perfect
I shouldn't have been apperceiving you shouldn't have been apperceiving she shouldn't have been apperceiving we shouldn't have been apperceiving you shouldn't have been apperceiving they shouldn't have been apperceiving
Interrogative form
Simple form
should I apperceive? should you apperceive? should she apperceive? should we apperceive? should you apperceive? should they apperceive?
V-ing form
should I be apperceiving? should you be apperceiving? should she be apperceiving? should we be apperceiving? should you be apperceiving? should they be apperceiving?
Perfect
should I have apperceived? should you have apperceived? should she have apperceived? should we have apperceived? should you have apperceived? should they have apperceived?
V-ing perfect
should I have been apperceiving? should you have been apperceiving? should she have been apperceiving? should we have been apperceiving? should you have been apperceiving? should they have been apperceiving?
Interro-negative form
Simple form
shouldn't I apperceive? shouldn't you apperceive? shouldn't she apperceive? shouldn't we apperceive? shouldn't you apperceive? shouldn't they apperceive?
V-ing form
shouldn't I be apperceiving? shouldn't you be apperceiving? shouldn't she be apperceiving? shouldn't we be apperceiving? shouldn't you be apperceiving? shouldn't they be apperceiving?
Perfect
shouldn't I have apperceived? shouldn't you have apperceived? shouldn't she have apperceived? shouldn't we have apperceived? shouldn't you have apperceived? shouldn't they have apperceived?
V-ing perfect
shouldn't I have been apperceiving? shouldn't you have been apperceiving? shouldn't she have been apperceiving? shouldn't we have been apperceiving? shouldn't you have been apperceiving? shouldn't they have been apperceiving?