English verb conjugation
MAY VALVE

Regular verb: valve - valved - valved

Affirmation

Simple form	V-ing form
I may valve you may valve he may valve we may valve you may valve they may valve	I may be valving you may be valving he may be valving we may be valving you may be valving they may be valving
Perfect	V-ing perfect
I may have valved you may have valved he may have valved we may have valved you may have valved they may have valved	I may have been valving you may have been valving he may have been valving we may have been valving you may have been valving they may have been valving

Negation

Simple form	V-ing form
I mayn't valve you mayn't valve he mayn't valve we mayn't valve you mayn't valve they mayn't valve	I mayn't be valving you mayn't be valving he mayn't be valving we mayn't be valving you mayn't be valving they mayn't be valving
Perfect	V-ing perfect
I mayn't have valved you mayn't have valved he mayn't have valved we mayn't have valved you mayn't have valved they mayn't have valved	I mayn't have been valving you mayn't have been valving he mayn't have been valving we mayn't have been valving you mayn't have been valving they mayn't have been valving

Interrogative form

Simple form	V-ing form
may I valve? may you valve? may he valve? may we valve? may you valve? may they valve?	may I be valving? may you be valving? may he be valving? may we be valving? may you be valving? may they be valving?
Perfect	V-ing perfect
may I have valved? may you have valved? may he have valved? may we have valved? may you have valved? may they have valved?	may I have been valving? may you have been valving? may he have been valving? may we have been valving? may you have been valving? may they have been valving?

Interro-negative form

Simple form	V-ing form
mayn't I valve? mayn't you valve? mayn't he valve? mayn't we valve? mayn't you valve? mayn't they valve?	mayn't I be valving? mayn't you be valving? mayn't he be valving? mayn't we be valving? mayn't you be valving? mayn't they be valving?
Perfect	V-ing perfect
mayn't I have valved? mayn't you have valved? mayn't he have valved? mayn't we have valved? mayn't you have valved? mayn't they have valved?	mayn't I have been valving? mayn't you have been valving? mayn't he have been valving? mayn't we have been valving? mayn't you have been valving? mayn't they have been valving?