English verb conjugation
MAY DETERIORATE

Regular verb: deteriorate - deteriorated - deteriorated

Affirmation

Simple form	V-ing form
I may deteriorate you may deteriorate she may deteriorate we may deteriorate you may deteriorate they may deteriorate	I may be deteriorating you may be deteriorating she may be deteriorating we may be deteriorating you may be deteriorating they may be deteriorating
Perfect	V-ing perfect
I may have deteriorated you may have deteriorated she may have deteriorated we may have deteriorated you may have deteriorated they may have deteriorated	I may have been deteriorating you may have been deteriorating she may have been deteriorating we may have been deteriorating you may have been deteriorating they may have been deteriorating

Negation

Simple form	V-ing form
I mayn't deteriorate you mayn't deteriorate she mayn't deteriorate we mayn't deteriorate you mayn't deteriorate they mayn't deteriorate	I mayn't be deteriorating you mayn't be deteriorating she mayn't be deteriorating we mayn't be deteriorating you mayn't be deteriorating they mayn't be deteriorating
Perfect	V-ing perfect
I mayn't have deteriorated you mayn't have deteriorated she mayn't have deteriorated we mayn't have deteriorated you mayn't have deteriorated they mayn't have deteriorated	I mayn't have been deteriorating you mayn't have been deteriorating she mayn't have been deteriorating we mayn't have been deteriorating you mayn't have been deteriorating they mayn't have been deteriorating

Interrogative form

Simple form	V-ing form
may I deteriorate? may you deteriorate? may she deteriorate? may we deteriorate? may you deteriorate? may they deteriorate?	may I be deteriorating? may you be deteriorating? may she be deteriorating? may we be deteriorating? may you be deteriorating? may they be deteriorating?
Perfect	V-ing perfect
may I have deteriorated? may you have deteriorated? may she have deteriorated? may we have deteriorated? may you have deteriorated? may they have deteriorated?	may I have been deteriorating? may you have been deteriorating? may she have been deteriorating? may we have been deteriorating? may you have been deteriorating? may they have been deteriorating?

Interro-negative form

Simple form	V-ing form
mayn't I deteriorate? mayn't you deteriorate? mayn't she deteriorate? mayn't we deteriorate? mayn't you deteriorate? mayn't they deteriorate?	mayn't I be deteriorating? mayn't you be deteriorating? mayn't she be deteriorating? mayn't we be deteriorating? mayn't you be deteriorating? mayn't they be deteriorating?
Perfect	V-ing perfect
mayn't I have deteriorated? mayn't you have deteriorated? mayn't she have deteriorated? mayn't we have deteriorated? mayn't you have deteriorated? mayn't they have deteriorated?	mayn't I have been deteriorating? mayn't you have been deteriorating? mayn't she have been deteriorating? mayn't we have been deteriorating? mayn't you have been deteriorating? mayn't they have been deteriorating?