may interfold
Regular verb: interfold - interfolded- interfolded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may interfold
you may interfold
she may interfold
we may interfold
you may interfold
they may interfold 	I may be interfolding
you may be interfolding
she may be interfolding
we may be interfolding
you may be interfolding
they may be interfolding	I may have interfolded
you may have interfolded
she may have interfolded
we may have interfolded
you may have interfolded
they may have interfolded	I may have been interfolding
you may have been interfolding
she may have been interfolding
we may have been interfolding
you may have been interfolding
they may have been interfolding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't interfold
you mayn't interfold
she mayn't interfold
we mayn't interfold
you mayn't interfold
they mayn't interfold 	I mayn't be interfolding
you mayn't be interfolding
she mayn't be interfolding
we mayn't be interfolding
you mayn't be interfolding
they mayn't be interfolding	I mayn't have interfolded
you mayn't have interfolded
she mayn't have interfolded
we mayn't have interfolded
you mayn't have interfolded
they mayn't have interfolded	I mayn't have been interfolding
you mayn't have been interfolding
she mayn't have been interfolding
we mayn't have been interfolding
you mayn't have been interfolding
they mayn't have been interfolding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I interfold?
may you interfold?
may she interfold?
may we interfold?
may you interfold?
may they interfold? 	may I be interfolding?
may you be interfolding?
may she be interfolding?
may we be interfolding?
may you be interfolding?
may they be interfolding? 	may I have interfolded?
may you have interfolded?
may she have interfolded?
may we have interfolded?
may you have interfolded?
may they have interfolded? 	may I have been interfolding?
may you have been interfolding?
may she have been interfolding?
may we have been interfolding?
may you have been interfolding?
may they have been interfolding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I interfold?
mayn't you interfold?
mayn't she interfold?
mayn't we interfold?
mayn't you interfold?
mayn't they interfold? 	mayn't I be interfolding?
mayn't you be interfolding?
mayn't she be interfolding?
mayn't we be interfolding?
mayn't you be interfolding?
mayn't they be interfolding? 	mayn't I have interfolded?
mayn't you have interfolded?
mayn't she have interfolded?
mayn't we have interfolded?
mayn't you have interfolded?
mayn't they have interfolded? 	mayn't I have been interfolding?
mayn't you have been interfolding?
mayn't she have been interfolding?
mayn't we have been interfolding?
mayn't you have been interfolding?
mayn't they have been interfolding?