may shuttle
Regular verb: shuttle - shuttled- shuttled

Affirmation 	
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I may shuttle
you may shuttle
he may shuttle
we may shuttle
you may shuttle
they may shuttle 	I may be shuttling
you may be shuttling
he may be shuttling
we may be shuttling
you may be shuttling
they may be shuttling	I may have shuttled
you may have shuttled
he may have shuttled
we may have shuttled
you may have shuttled
they may have shuttled	I may have been shuttling
you may have been shuttling
he may have been shuttling
we may have been shuttling
you may have been shuttling
they may have been shuttling	

Negation 	
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I mayn't shuttle
you mayn't shuttle
he mayn't shuttle
we mayn't shuttle
you mayn't shuttle
they mayn't shuttle 	I mayn't be shuttling
you mayn't be shuttling
he mayn't be shuttling
we mayn't be shuttling
you mayn't be shuttling
they mayn't be shuttling	I mayn't have shuttled
you mayn't have shuttled
he mayn't have shuttled
we mayn't have shuttled
you mayn't have shuttled
they mayn't have shuttled	I mayn't have been shuttling
you mayn't have been shuttling
he mayn't have been shuttling
we mayn't have been shuttling
you mayn't have been shuttling
they mayn't have been shuttling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I shuttle?
may you shuttle?
may he shuttle?
may we shuttle?
may you shuttle?
may they shuttle? 	may I be shuttling?
may you be shuttling?
may he be shuttling?
may we be shuttling?
may you be shuttling?
may they be shuttling? 	may I have shuttled?
may you have shuttled?
may he have shuttled?
may we have shuttled?
may you have shuttled?
may they have shuttled? 	may I have been shuttling?
may you have been shuttling?
may he have been shuttling?
may we have been shuttling?
may you have been shuttling?
may they have been shuttling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I shuttle?
mayn't you shuttle?
mayn't he shuttle?
mayn't we shuttle?
mayn't you shuttle?
mayn't they shuttle? 	mayn't I be shuttling?
mayn't you be shuttling?
mayn't he be shuttling?
mayn't we be shuttling?
mayn't you be shuttling?
mayn't they be shuttling? 	mayn't I have shuttled?
mayn't you have shuttled?
mayn't he have shuttled?
mayn't we have shuttled?
mayn't you have shuttled?
mayn't they have shuttled? 	mayn't I have been shuttling?
mayn't you have been shuttling?
mayn't he have been shuttling?
mayn't we have been shuttling?
mayn't you have been shuttling?
mayn't they have been shuttling?