I may stall you may stall he may stall we may stall you may stall they may stall
V-ing form
I may be stalling you may be stalling he may be stalling we may be stalling you may be stalling they may be stalling
Perfect
I may have stalled you may have stalled he may have stalled we may have stalled you may have stalled they may have stalled
V-ing perfect
I may have been stalling you may have been stalling he may have been stalling we may have been stalling you may have been stalling they may have been stalling
Negation
Simple form
I mayn't stall you mayn't stall he mayn't stall we mayn't stall you mayn't stall they mayn't stall
V-ing form
I mayn't be stalling you mayn't be stalling he mayn't be stalling we mayn't be stalling you mayn't be stalling they mayn't be stalling
Perfect
I mayn't have stalled you mayn't have stalled he mayn't have stalled we mayn't have stalled you mayn't have stalled they mayn't have stalled
V-ing perfect
I mayn't have been stalling you mayn't have been stalling he mayn't have been stalling we mayn't have been stalling you mayn't have been stalling they mayn't have been stalling
Interrogative form
Simple form
may I stall? may you stall? may he stall? may we stall? may you stall? may they stall?
V-ing form
may I be stalling? may you be stalling? may he be stalling? may we be stalling? may you be stalling? may they be stalling?
Perfect
may I have stalled? may you have stalled? may he have stalled? may we have stalled? may you have stalled? may they have stalled?
V-ing perfect
may I have been stalling? may you have been stalling? may he have been stalling? may we have been stalling? may you have been stalling? may they have been stalling?
Interro-negative form
Simple form
mayn't I stall? mayn't you stall? mayn't he stall? mayn't we stall? mayn't you stall? mayn't they stall?
V-ing form
mayn't I be stalling? mayn't you be stalling? mayn't he be stalling? mayn't we be stalling? mayn't you be stalling? mayn't they be stalling?
Perfect
mayn't I have stalled? mayn't you have stalled? mayn't he have stalled? mayn't we have stalled? mayn't you have stalled? mayn't they have stalled?
V-ing perfect
mayn't I have been stalling? mayn't you have been stalling? mayn't he have been stalling? mayn't we have been stalling? mayn't you have been stalling? mayn't they have been stalling?