may regrind
Irregular verb: regrind - reground- reground

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may regrind
you may regrind
she may regrind
we may regrind
you may regrind
they may regrind 	I may be regrinding
you may be regrinding
she may be regrinding
we may be regrinding
you may be regrinding
they may be regrinding	I may have reground
you may have reground
she may have reground
we may have reground
you may have reground
they may have reground	I may have been regrinding
you may have been regrinding
she may have been regrinding
we may have been regrinding
you may have been regrinding
they may have been regrinding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't regrind
you mayn't regrind
she mayn't regrind
we mayn't regrind
you mayn't regrind
they mayn't regrind 	I mayn't be regrinding
you mayn't be regrinding
she mayn't be regrinding
we mayn't be regrinding
you mayn't be regrinding
they mayn't be regrinding	I mayn't have reground
you mayn't have reground
she mayn't have reground
we mayn't have reground
you mayn't have reground
they mayn't have reground	I mayn't have been regrinding
you mayn't have been regrinding
she mayn't have been regrinding
we mayn't have been regrinding
you mayn't have been regrinding
they mayn't have been regrinding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I regrind?
may you regrind?
may she regrind?
may we regrind?
may you regrind?
may they regrind? 	may I be regrinding?
may you be regrinding?
may she be regrinding?
may we be regrinding?
may you be regrinding?
may they be regrinding? 	may I have reground?
may you have reground?
may she have reground?
may we have reground?
may you have reground?
may they have reground? 	may I have been regrinding?
may you have been regrinding?
may she have been regrinding?
may we have been regrinding?
may you have been regrinding?
may they have been regrinding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I regrind?
mayn't you regrind?
mayn't she regrind?
mayn't we regrind?
mayn't you regrind?
mayn't they regrind? 	mayn't I be regrinding?
mayn't you be regrinding?
mayn't she be regrinding?
mayn't we be regrinding?
mayn't you be regrinding?
mayn't they be regrinding? 	mayn't I have reground?
mayn't you have reground?
mayn't she have reground?
mayn't we have reground?
mayn't you have reground?
mayn't they have reground? 	mayn't I have been regrinding?
mayn't you have been regrinding?
mayn't she have been regrinding?
mayn't we have been regrinding?
mayn't you have been regrinding?
mayn't they have been regrinding?