may sightsee
Regular verb: sightsee - sightseed- sightseed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may sightsee
you may sightsee
she may sightsee
we may sightsee
you may sightsee
they may sightsee 	I may be sightseeing
you may be sightseeing
she may be sightseeing
we may be sightseeing
you may be sightseeing
they may be sightseeing	I may have sightseed
you may have sightseed
she may have sightseed
we may have sightseed
you may have sightseed
they may have sightseed	I may have been sightseeing
you may have been sightseeing
she may have been sightseeing
we may have been sightseeing
you may have been sightseeing
they may have been sightseeing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't sightsee
you mayn't sightsee
she mayn't sightsee
we mayn't sightsee
you mayn't sightsee
they mayn't sightsee 	I mayn't be sightseeing
you mayn't be sightseeing
she mayn't be sightseeing
we mayn't be sightseeing
you mayn't be sightseeing
they mayn't be sightseeing	I mayn't have sightseed
you mayn't have sightseed
she mayn't have sightseed
we mayn't have sightseed
you mayn't have sightseed
they mayn't have sightseed	I mayn't have been sightseeing
you mayn't have been sightseeing
she mayn't have been sightseeing
we mayn't have been sightseeing
you mayn't have been sightseeing
they mayn't have been sightseeing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I sightsee?
may you sightsee?
may she sightsee?
may we sightsee?
may you sightsee?
may they sightsee? 	may I be sightseeing?
may you be sightseeing?
may she be sightseeing?
may we be sightseeing?
may you be sightseeing?
may they be sightseeing? 	may I have sightseed?
may you have sightseed?
may she have sightseed?
may we have sightseed?
may you have sightseed?
may they have sightseed? 	may I have been sightseeing?
may you have been sightseeing?
may she have been sightseeing?
may we have been sightseeing?
may you have been sightseeing?
may they have been sightseeing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I sightsee?
mayn't you sightsee?
mayn't she sightsee?
mayn't we sightsee?
mayn't you sightsee?
mayn't they sightsee? 	mayn't I be sightseeing?
mayn't you be sightseeing?
mayn't she be sightseeing?
mayn't we be sightseeing?
mayn't you be sightseeing?
mayn't they be sightseeing? 	mayn't I have sightseed?
mayn't you have sightseed?
mayn't she have sightseed?
mayn't we have sightseed?
mayn't you have sightseed?
mayn't they have sightseed? 	mayn't I have been sightseeing?
mayn't you have been sightseeing?
mayn't she have been sightseeing?
mayn't we have been sightseeing?
mayn't you have been sightseeing?
mayn't they have been sightseeing?