I may backstitch you may backstitch he may backstitch we may backstitch you may backstitch they may backstitch
V-ing form
I may be backstitching you may be backstitching he may be backstitching we may be backstitching you may be backstitching they may be backstitching
Perfect
I may have backstitched you may have backstitched he may have backstitched we may have backstitched you may have backstitched they may have backstitched
V-ing perfect
I may have been backstitching you may have been backstitching he may have been backstitching we may have been backstitching you may have been backstitching they may have been backstitching
Negation
Simple form
I may not backstitch you may not backstitch he may not backstitch we may not backstitch you may not backstitch they may not backstitch
V-ing form
I may not be backstitching you may not be backstitching he may not be backstitching we may not be backstitching you may not be backstitching they may not be backstitching
Perfect
I may not have backstitched you may not have backstitched he may not have backstitched we may not have backstitched you may not have backstitched they may not have backstitched
V-ing perfect
I may not have been backstitching you may not have been backstitching he may not have been backstitching we may not have been backstitching you may not have been backstitching they may not have been backstitching
Interrogative form
Simple form
may I backstitch? may you backstitch? may he backstitch? may we backstitch? may you backstitch? may they backstitch?
V-ing form
may I be backstitching? may you be backstitching? may he be backstitching? may we be backstitching? may you be backstitching? may they be backstitching?
Perfect
may I have backstitched? may you have backstitched? may he have backstitched? may we have backstitched? may you have backstitched? may they have backstitched?
V-ing perfect
may I have been backstitching? may you have been backstitching? may he have been backstitching? may we have been backstitching? may you have been backstitching? may they have been backstitching?
Interro-negative form
Simple form
may I not backstitch? may you not backstitch? may he not backstitch? may we not backstitch? may you not backstitch? may they not backstitch?
V-ing form
may I not be backstitching? may you not be backstitching? may he not be backstitching? may we not be backstitching? may you not be backstitching? may they not be backstitching?
Perfect
may I not have backstitched? may you not have backstitched? may he not have backstitched? may we not have backstitched? may you not have backstitched? may they not have backstitched?
V-ing perfect
may I not have been backstitching? may you not have been backstitching? may he not have been backstitching? may we not have been backstitching? may you not have been backstitching? may they not have been backstitching?