English verb conjugation
MAY PREINSTRUCT

Regular verb: preinstruct - preinstructed - preinstructed

Affirmation

Simple form	V-ing form
I may preinstruct you may preinstruct he may preinstruct we may preinstruct you may preinstruct they may preinstruct	I may be preinstructing you may be preinstructing he may be preinstructing we may be preinstructing you may be preinstructing they may be preinstructing
Perfect	V-ing perfect
I may have preinstructed you may have preinstructed he may have preinstructed we may have preinstructed you may have preinstructed they may have preinstructed	I may have been preinstructing you may have been preinstructing he may have been preinstructing we may have been preinstructing you may have been preinstructing they may have been preinstructing

Negation

Simple form	V-ing form
I mayn't preinstruct you mayn't preinstruct he mayn't preinstruct we mayn't preinstruct you mayn't preinstruct they mayn't preinstruct	I mayn't be preinstructing you mayn't be preinstructing he mayn't be preinstructing we mayn't be preinstructing you mayn't be preinstructing they mayn't be preinstructing
Perfect	V-ing perfect
I mayn't have preinstructed you mayn't have preinstructed he mayn't have preinstructed we mayn't have preinstructed you mayn't have preinstructed they mayn't have preinstructed	I mayn't have been preinstructing you mayn't have been preinstructing he mayn't have been preinstructing we mayn't have been preinstructing you mayn't have been preinstructing they mayn't have been preinstructing

Interrogative form

Simple form	V-ing form
may I preinstruct? may you preinstruct? may he preinstruct? may we preinstruct? may you preinstruct? may they preinstruct?	may I be preinstructing? may you be preinstructing? may he be preinstructing? may we be preinstructing? may you be preinstructing? may they be preinstructing?
Perfect	V-ing perfect
may I have preinstructed? may you have preinstructed? may he have preinstructed? may we have preinstructed? may you have preinstructed? may they have preinstructed?	may I have been preinstructing? may you have been preinstructing? may he have been preinstructing? may we have been preinstructing? may you have been preinstructing? may they have been preinstructing?

Interro-negative form

Simple form	V-ing form
mayn't I preinstruct? mayn't you preinstruct? mayn't he preinstruct? mayn't we preinstruct? mayn't you preinstruct? mayn't they preinstruct?	mayn't I be preinstructing? mayn't you be preinstructing? mayn't he be preinstructing? mayn't we be preinstructing? mayn't you be preinstructing? mayn't they be preinstructing?
Perfect	V-ing perfect
mayn't I have preinstructed? mayn't you have preinstructed? mayn't he have preinstructed? mayn't we have preinstructed? mayn't you have preinstructed? mayn't they have preinstructed?	mayn't I have been preinstructing? mayn't you have been preinstructing? mayn't he have been preinstructing? mayn't we have been preinstructing? mayn't you have been preinstructing? mayn't they have been preinstructing?