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