English verb conjugation
SHOULD SIGHTSEE

Regular verb: sightsee - sightseed - sightseed

Affirmation

Simple form	V-ing form
I'd sightsee you'd sightsee he'd sightsee we'd sightsee you'd sightsee they'd sightsee	I'd be sightseeing you'd be sightseeing he'd be sightseeing we'd be sightseeing you'd be sightseeing they'd be sightseeing
Perfect	V-ing perfect
I should've sightseed you should've sightseed he should've sightseed we should've sightseed you should've sightseed they should've sightseed	I should've been sightseeing you should've been sightseeing he should've been sightseeing we should've been sightseeing you should've been sightseeing they should've been sightseeing

Negation

Simple form	V-ing form
I shouldn't sightsee you shouldn't sightsee he shouldn't sightsee we shouldn't sightsee you shouldn't sightsee they shouldn't sightsee	I shouldn't be sightseeing you shouldn't be sightseeing he shouldn't be sightseeing we shouldn't be sightseeing you shouldn't be sightseeing they shouldn't be sightseeing
Perfect	V-ing perfect
I shouldn't have sightseed you shouldn't have sightseed he shouldn't have sightseed we shouldn't have sightseed you shouldn't have sightseed they shouldn't have sightseed	I shouldn't have been sightseeing you shouldn't have been sightseeing he shouldn't have been sightseeing we shouldn't have been sightseeing you shouldn't have been sightseeing they shouldn't have been sightseeing

Interrogative form

Simple form	V-ing form
should I sightsee? should you sightsee? should he sightsee? should we sightsee? should you sightsee? should they sightsee?	should I be sightseeing? should you be sightseeing? should he be sightseeing? should we be sightseeing? should you be sightseeing? should they be sightseeing?
Perfect	V-ing perfect
should I have sightseed? should you have sightseed? should he have sightseed? should we have sightseed? should you have sightseed? should they have sightseed?	should I have been sightseeing? should you have been sightseeing? should he have been sightseeing? should we have been sightseeing? should you have been sightseeing? should they have been sightseeing?

Interro-negative form

Simple form	V-ing form
shouldn't I sightsee? shouldn't you sightsee? shouldn't he sightsee? shouldn't we sightsee? shouldn't you sightsee? shouldn't they sightsee?	shouldn't I be sightseeing? shouldn't you be sightseeing? shouldn't he be sightseeing? shouldn't we be sightseeing? shouldn't you be sightseeing? shouldn't they be sightseeing?
Perfect	V-ing perfect
shouldn't I have sightseed? shouldn't you have sightseed? shouldn't he have sightseed? shouldn't we have sightseed? shouldn't you have sightseed? shouldn't they have sightseed?	shouldn't I have been sightseeing? shouldn't you have been sightseeing? shouldn't he have been sightseeing? shouldn't we have been sightseeing? shouldn't you have been sightseeing? shouldn't they have been sightseeing?