English verb conjugation
MAY SHAM

Regular verb: sham - shammed - shammed

Affirmation

Simple form	V-ing form
I may sham you may sham he may sham we may sham you may sham they may sham	I may be shamming you may be shamming he may be shamming we may be shamming you may be shamming they may be shamming
Perfect	V-ing perfect
I may have shammed you may have shammed he may have shammed we may have shammed you may have shammed they may have shammed	I may have been shamming you may have been shamming he may have been shamming we may have been shamming you may have been shamming they may have been shamming

Negation

Simple form	V-ing form
I may not sham you may not sham he may not sham we may not sham you may not sham they may not sham	I may not be shamming you may not be shamming he may not be shamming we may not be shamming you may not be shamming they may not be shamming
Perfect	V-ing perfect
I may not have shammed you may not have shammed he may not have shammed we may not have shammed you may not have shammed they may not have shammed	I may not have been shamming you may not have been shamming he may not have been shamming we may not have been shamming you may not have been shamming they may not have been shamming

Interrogative form

Simple form	V-ing form
may I sham? may you sham? may he sham? may we sham? may you sham? may they sham?	may I be shamming? may you be shamming? may he be shamming? may we be shamming? may you be shamming? may they be shamming?
Perfect	V-ing perfect
may I have shammed? may you have shammed? may he have shammed? may we have shammed? may you have shammed? may they have shammed?	may I have been shamming? may you have been shamming? may he have been shamming? may we have been shamming? may you have been shamming? may they have been shamming?

Interro-negative form

Simple form	V-ing form
may I not sham? may you not sham? may he not sham? may we not sham? may you not sham? may they not sham?	may I not be shamming? may you not be shamming? may he not be shamming? may we not be shamming? may you not be shamming? may they not be shamming?
Perfect	V-ing perfect
may I not have shammed? may you not have shammed? may he not have shammed? may we not have shammed? may you not have shammed? may they not have shammed?	may I not have been shamming? may you not have been shamming? may he not have been shamming? may we not have been shamming? may you not have been shamming? may they not have been shamming?