English verb conjugation
MAY FILTER

Regular verb: filter - filtered - filtered

Affirmation

Simple form	V-ing form
I may filter you may filter she may filter we may filter you may filter they may filter	I may be filtering you may be filtering she may be filtering we may be filtering you may be filtering they may be filtering
Perfect	V-ing perfect
I may have filtered you may have filtered she may have filtered we may have filtered you may have filtered they may have filtered	I may have been filtering you may have been filtering she may have been filtering we may have been filtering you may have been filtering they may have been filtering

Negation

Simple form	V-ing form
I mayn't filter you mayn't filter she mayn't filter we mayn't filter you mayn't filter they mayn't filter	I mayn't be filtering you mayn't be filtering she mayn't be filtering we mayn't be filtering you mayn't be filtering they mayn't be filtering
Perfect	V-ing perfect
I mayn't have filtered you mayn't have filtered she mayn't have filtered we mayn't have filtered you mayn't have filtered they mayn't have filtered	I mayn't have been filtering you mayn't have been filtering she mayn't have been filtering we mayn't have been filtering you mayn't have been filtering they mayn't have been filtering

Interrogative form

Simple form	V-ing form
may I filter? may you filter? may she filter? may we filter? may you filter? may they filter?	may I be filtering? may you be filtering? may she be filtering? may we be filtering? may you be filtering? may they be filtering?
Perfect	V-ing perfect
may I have filtered? may you have filtered? may she have filtered? may we have filtered? may you have filtered? may they have filtered?	may I have been filtering? may you have been filtering? may she have been filtering? may we have been filtering? may you have been filtering? may they have been filtering?

Interro-negative form

Simple form	V-ing form
mayn't I filter? mayn't you filter? mayn't she filter? mayn't we filter? mayn't you filter? mayn't they filter?	mayn't I be filtering? mayn't you be filtering? mayn't she be filtering? mayn't we be filtering? mayn't you be filtering? mayn't they be filtering?
Perfect	V-ing perfect
mayn't I have filtered? mayn't you have filtered? mayn't she have filtered? mayn't we have filtered? mayn't you have filtered? mayn't they have filtered?	mayn't I have been filtering? mayn't you have been filtering? mayn't she have been filtering? mayn't we have been filtering? mayn't you have been filtering? mayn't they have been filtering?