may backfit
Irregular verb: backfit - backfit, backfitted- backfit, backfitted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may backfit
you may backfit
she may backfit
we may backfit
you may backfit
they may backfit 	I may be backfiting
you may be backfiting
she may be backfiting
we may be backfiting
you may be backfiting
they may be backfiting	I may have backfit, backfitted
you may have backfit, backfitted
she may have backfit, backfitted
we may have backfit, backfitted
you may have backfit, backfitted
they may have backfit, backfitted	I may have been backfiting
you may have been backfiting
she may have been backfiting
we may have been backfiting
you may have been backfiting
they may have been backfiting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't backfit
you mayn't backfit
she mayn't backfit
we mayn't backfit
you mayn't backfit
they mayn't backfit 	I mayn't be backfiting
you mayn't be backfiting
she mayn't be backfiting
we mayn't be backfiting
you mayn't be backfiting
they mayn't be backfiting	I mayn't have backfit, backfitted
you mayn't have backfit, backfitted
she mayn't have backfit, backfitted
we mayn't have backfit, backfitted
you mayn't have backfit, backfitted
they mayn't have backfit, backfitted	I mayn't have been backfiting
you mayn't have been backfiting
she mayn't have been backfiting
we mayn't have been backfiting
you mayn't have been backfiting
they mayn't have been backfiting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I backfit?
may you backfit?
may she backfit?
may we backfit?
may you backfit?
may they backfit? 	may I be backfiting?
may you be backfiting?
may she be backfiting?
may we be backfiting?
may you be backfiting?
may they be backfiting? 	may I have backfit, backfitted?
may you have backfit, backfitted?
may she have backfit, backfitted?
may we have backfit, backfitted?
may you have backfit, backfitted?
may they have backfit, backfitted? 	may I have been backfiting?
may you have been backfiting?
may she have been backfiting?
may we have been backfiting?
may you have been backfiting?
may they have been backfiting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I backfit?
mayn't you backfit?
mayn't she backfit?
mayn't we backfit?
mayn't you backfit?
mayn't they backfit? 	mayn't I be backfiting?
mayn't you be backfiting?
mayn't she be backfiting?
mayn't we be backfiting?
mayn't you be backfiting?
mayn't they be backfiting? 	mayn't I have backfit, backfitted?
mayn't you have backfit, backfitted?
mayn't she have backfit, backfitted?
mayn't we have backfit, backfitted?
mayn't you have backfit, backfitted?
mayn't they have backfit, backfitted? 	mayn't I have been backfiting?
mayn't you have been backfiting?
mayn't she have been backfiting?
mayn't we have been backfiting?
mayn't you have been backfiting?
mayn't they have been backfiting?