may backspace
Regular verb: backspace - backspaced- backspaced

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may backspace
you may backspace
she may backspace
we may backspace
you may backspace
they may backspace 	I may be backspacing
you may be backspacing
she may be backspacing
we may be backspacing
you may be backspacing
they may be backspacing	I may have backspaced
you may have backspaced
she may have backspaced
we may have backspaced
you may have backspaced
they may have backspaced	I may have been backspacing
you may have been backspacing
she may have been backspacing
we may have been backspacing
you may have been backspacing
they may have been backspacing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't backspace
you mayn't backspace
she mayn't backspace
we mayn't backspace
you mayn't backspace
they mayn't backspace 	I mayn't be backspacing
you mayn't be backspacing
she mayn't be backspacing
we mayn't be backspacing
you mayn't be backspacing
they mayn't be backspacing	I mayn't have backspaced
you mayn't have backspaced
she mayn't have backspaced
we mayn't have backspaced
you mayn't have backspaced
they mayn't have backspaced	I mayn't have been backspacing
you mayn't have been backspacing
she mayn't have been backspacing
we mayn't have been backspacing
you mayn't have been backspacing
they mayn't have been backspacing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I backspace?
may you backspace?
may she backspace?
may we backspace?
may you backspace?
may they backspace? 	may I be backspacing?
may you be backspacing?
may she be backspacing?
may we be backspacing?
may you be backspacing?
may they be backspacing? 	may I have backspaced?
may you have backspaced?
may she have backspaced?
may we have backspaced?
may you have backspaced?
may they have backspaced? 	may I have been backspacing?
may you have been backspacing?
may she have been backspacing?
may we have been backspacing?
may you have been backspacing?
may they have been backspacing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I backspace?
mayn't you backspace?
mayn't she backspace?
mayn't we backspace?
mayn't you backspace?
mayn't they backspace? 	mayn't I be backspacing?
mayn't you be backspacing?
mayn't she be backspacing?
mayn't we be backspacing?
mayn't you be backspacing?
mayn't they be backspacing? 	mayn't I have backspaced?
mayn't you have backspaced?
mayn't she have backspaced?
mayn't we have backspaced?
mayn't you have backspaced?
mayn't they have backspaced? 	mayn't I have been backspacing?
mayn't you have been backspacing?
mayn't she have been backspacing?
mayn't we have been backspacing?
mayn't you have been backspacing?
mayn't they have been backspacing?