may shutter
Regular verb: shutter - shuttered- shuttered

Affirmation 	
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I may shutter
you may shutter
he may shutter
we may shutter
you may shutter
they may shutter 	I may be shuttering
you may be shuttering
he may be shuttering
we may be shuttering
you may be shuttering
they may be shuttering	I may have shuttered
you may have shuttered
he may have shuttered
we may have shuttered
you may have shuttered
they may have shuttered	I may have been shuttering
you may have been shuttering
he may have been shuttering
we may have been shuttering
you may have been shuttering
they may have been shuttering	

Negation 	
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I mayn't shutter
you mayn't shutter
he mayn't shutter
we mayn't shutter
you mayn't shutter
they mayn't shutter 	I mayn't be shuttering
you mayn't be shuttering
he mayn't be shuttering
we mayn't be shuttering
you mayn't be shuttering
they mayn't be shuttering	I mayn't have shuttered
you mayn't have shuttered
he mayn't have shuttered
we mayn't have shuttered
you mayn't have shuttered
they mayn't have shuttered	I mayn't have been shuttering
you mayn't have been shuttering
he mayn't have been shuttering
we mayn't have been shuttering
you mayn't have been shuttering
they mayn't have been shuttering	

Interrogative form 	
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may I shutter?
may you shutter?
may he shutter?
may we shutter?
may you shutter?
may they shutter? 	may I be shuttering?
may you be shuttering?
may he be shuttering?
may we be shuttering?
may you be shuttering?
may they be shuttering? 	may I have shuttered?
may you have shuttered?
may he have shuttered?
may we have shuttered?
may you have shuttered?
may they have shuttered? 	may I have been shuttering?
may you have been shuttering?
may he have been shuttering?
may we have been shuttering?
may you have been shuttering?
may they have been shuttering? 	

Interro-negative form 	
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mayn't I shutter?
mayn't you shutter?
mayn't he shutter?
mayn't we shutter?
mayn't you shutter?
mayn't they shutter? 	mayn't I be shuttering?
mayn't you be shuttering?
mayn't he be shuttering?
mayn't we be shuttering?
mayn't you be shuttering?
mayn't they be shuttering? 	mayn't I have shuttered?
mayn't you have shuttered?
mayn't he have shuttered?
mayn't we have shuttered?
mayn't you have shuttered?
mayn't they have shuttered? 	mayn't I have been shuttering?
mayn't you have been shuttering?
mayn't he have been shuttering?
mayn't we have been shuttering?
mayn't you have been shuttering?
mayn't they have been shuttering?