English verb conjugation
MAY ROLLER-SKATE

Regular verb: roller-skate - roller-skated - roller-skated

Affirmation

Simple form	V-ing form
I may roller-skate you may roller-skate he may roller-skate we may roller-skate you may roller-skate they may roller-skate	I may be roller-skating you may be roller-skating he may be roller-skating we may be roller-skating you may be roller-skating they may be roller-skating
Perfect	V-ing perfect
I may have roller-skated you may have roller-skated he may have roller-skated we may have roller-skated you may have roller-skated they may have roller-skated	I may have been roller-skating you may have been roller-skating he may have been roller-skating we may have been roller-skating you may have been roller-skating they may have been roller-skating

Negation

Simple form	V-ing form
I may not roller-skate you may not roller-skate he may not roller-skate we may not roller-skate you may not roller-skate they may not roller-skate	I may not be roller-skating you may not be roller-skating he may not be roller-skating we may not be roller-skating you may not be roller-skating they may not be roller-skating
Perfect	V-ing perfect
I may not have roller-skated you may not have roller-skated he may not have roller-skated we may not have roller-skated you may not have roller-skated they may not have roller-skated	I may not have been roller-skating you may not have been roller-skating he may not have been roller-skating we may not have been roller-skating you may not have been roller-skating they may not have been roller-skating

Interrogative form

Simple form	V-ing form
may I roller-skate? may you roller-skate? may he roller-skate? may we roller-skate? may you roller-skate? may they roller-skate?	may I be roller-skating? may you be roller-skating? may he be roller-skating? may we be roller-skating? may you be roller-skating? may they be roller-skating?
Perfect	V-ing perfect
may I have roller-skated? may you have roller-skated? may he have roller-skated? may we have roller-skated? may you have roller-skated? may they have roller-skated?	may I have been roller-skating? may you have been roller-skating? may he have been roller-skating? may we have been roller-skating? may you have been roller-skating? may they have been roller-skating?

Interro-negative form

Simple form	V-ing form
may I not roller-skate? may you not roller-skate? may he not roller-skate? may we not roller-skate? may you not roller-skate? may they not roller-skate?	may I not be roller-skating? may you not be roller-skating? may he not be roller-skating? may we not be roller-skating? may you not be roller-skating? may they not be roller-skating?
Perfect	V-ing perfect
may I not have roller-skated? may you not have roller-skated? may he not have roller-skated? may we not have roller-skated? may you not have roller-skated? may they not have roller-skated?	may I not have been roller-skating? may you not have been roller-skating? may he not have been roller-skating? may we not have been roller-skating? may you not have been roller-skating? may they not have been roller-skating?