may encumber
Regular verb: encumber - encumbered- encumbered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may encumber
you may encumber
she may encumber
we may encumber
you may encumber
they may encumber 	I may be encumbering
you may be encumbering
she may be encumbering
we may be encumbering
you may be encumbering
they may be encumbering	I may have encumbered
you may have encumbered
she may have encumbered
we may have encumbered
you may have encumbered
they may have encumbered	I may have been encumbering
you may have been encumbering
she may have been encumbering
we may have been encumbering
you may have been encumbering
they may have been encumbering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't encumber
you mayn't encumber
she mayn't encumber
we mayn't encumber
you mayn't encumber
they mayn't encumber 	I mayn't be encumbering
you mayn't be encumbering
she mayn't be encumbering
we mayn't be encumbering
you mayn't be encumbering
they mayn't be encumbering	I mayn't have encumbered
you mayn't have encumbered
she mayn't have encumbered
we mayn't have encumbered
you mayn't have encumbered
they mayn't have encumbered	I mayn't have been encumbering
you mayn't have been encumbering
she mayn't have been encumbering
we mayn't have been encumbering
you mayn't have been encumbering
they mayn't have been encumbering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I encumber?
may you encumber?
may she encumber?
may we encumber?
may you encumber?
may they encumber? 	may I be encumbering?
may you be encumbering?
may she be encumbering?
may we be encumbering?
may you be encumbering?
may they be encumbering? 	may I have encumbered?
may you have encumbered?
may she have encumbered?
may we have encumbered?
may you have encumbered?
may they have encumbered? 	may I have been encumbering?
may you have been encumbering?
may she have been encumbering?
may we have been encumbering?
may you have been encumbering?
may they have been encumbering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I encumber?
mayn't you encumber?
mayn't she encumber?
mayn't we encumber?
mayn't you encumber?
mayn't they encumber? 	mayn't I be encumbering?
mayn't you be encumbering?
mayn't she be encumbering?
mayn't we be encumbering?
mayn't you be encumbering?
mayn't they be encumbering? 	mayn't I have encumbered?
mayn't you have encumbered?
mayn't she have encumbered?
mayn't we have encumbered?
mayn't you have encumbered?
mayn't they have encumbered? 	mayn't I have been encumbering?
mayn't you have been encumbering?
mayn't she have been encumbering?
mayn't we have been encumbering?
mayn't you have been encumbering?
mayn't they have been encumbering?