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 may not valve you may not valve he may not valve we may not valve you may not valve they may not valve	I may not be valving you may not be valving he may not be valving we may not be valving you may not be valving they may not be valving
Perfect	V-ing perfect
I may not have valved you may not have valved he may not have valved we may not have valved you may not have valved they may not have valved	I may not have been valving you may not have been valving he may not have been valving we may not have been valving you may not have been valving they may not 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
may I not valve? may you not valve? may he not valve? may we not valve? may you not valve? may they not valve?	may I not be valving? may you not be valving? may he not be valving? may we not be valving? may you not be valving? may they not be valving?
Perfect	V-ing perfect
may I not have valved? may you not have valved? may he not have valved? may we not have valved? may you not have valved? may they not have valved?	may I not have been valving? may you not have been valving? may he not have been valving? may we not have been valving? may you not have been valving? may they not have been valving?