may suffer
Regular verb: suffer - suffered- suffered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may suffer
you may suffer
he may suffer
we may suffer
you may suffer
they may suffer 	I may be suffering
you may be suffering
he may be suffering
we may be suffering
you may be suffering
they may be suffering	I may have suffered
you may have suffered
he may have suffered
we may have suffered
you may have suffered
they may have suffered	I may have been suffering
you may have been suffering
he may have been suffering
we may have been suffering
you may have been suffering
they may have been suffering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't suffer
you mayn't suffer
he mayn't suffer
we mayn't suffer
you mayn't suffer
they mayn't suffer 	I mayn't be suffering
you mayn't be suffering
he mayn't be suffering
we mayn't be suffering
you mayn't be suffering
they mayn't be suffering	I mayn't have suffered
you mayn't have suffered
he mayn't have suffered
we mayn't have suffered
you mayn't have suffered
they mayn't have suffered	I mayn't have been suffering
you mayn't have been suffering
he mayn't have been suffering
we mayn't have been suffering
you mayn't have been suffering
they mayn't have been suffering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I suffer?
may you suffer?
may he suffer?
may we suffer?
may you suffer?
may they suffer? 	may I be suffering?
may you be suffering?
may he be suffering?
may we be suffering?
may you be suffering?
may they be suffering? 	may I have suffered?
may you have suffered?
may he have suffered?
may we have suffered?
may you have suffered?
may they have suffered? 	may I have been suffering?
may you have been suffering?
may he have been suffering?
may we have been suffering?
may you have been suffering?
may they have been suffering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I suffer?
mayn't you suffer?
mayn't he suffer?
mayn't we suffer?
mayn't you suffer?
mayn't they suffer? 	mayn't I be suffering?
mayn't you be suffering?
mayn't he be suffering?
mayn't we be suffering?
mayn't you be suffering?
mayn't they be suffering? 	mayn't I have suffered?
mayn't you have suffered?
mayn't he have suffered?
mayn't we have suffered?
mayn't you have suffered?
mayn't they have suffered? 	mayn't I have been suffering?
mayn't you have been suffering?
mayn't he have been suffering?
mayn't we have been suffering?
mayn't you have been suffering?
mayn't they have been suffering?