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