English verb conjugation MAY FASTEN

Regular verb: fasten - fastened - fastened


Affirmation

Simple form

I may fasten
you may fasten
he may fasten
we may fasten
you may fasten
they may fasten

V-ing form

I may be fastening
you may be fastening
he may be fastening
we may be fastening
you may be fastening
they may be fastening

Perfect

I may have fastened
you may have fastened
he may have fastened
we may have fastened
you may have fastened
they may have fastened

V-ing perfect

I may have been fastening
you may have been fastening
he may have been fastening
we may have been fastening
you may have been fastening
they may have been fastening

Negation

Simple form

I may not fasten
you may not fasten
he may not fasten
we may not fasten
you may not fasten
they may not fasten

V-ing form

I may not be fastening
you may not be fastening
he may not be fastening
we may not be fastening
you may not be fastening
they may not be fastening

Perfect

I may not have fastened
you may not have fastened
he may not have fastened
we may not have fastened
you may not have fastened
they may not have fastened

V-ing perfect

I may not have been fastening
you may not have been fastening
he may not have been fastening
we may not have been fastening
you may not have been fastening
they may not have been fastening

Interrogative form

Simple form

may I fasten?
may you fasten?
may he fasten?
may we fasten?
may you fasten?
may they fasten?

V-ing form

may I be fastening?
may you be fastening?
may he be fastening?
may we be fastening?
may you be fastening?
may they be fastening?

Perfect

may I have fastened?
may you have fastened?
may he have fastened?
may we have fastened?
may you have fastened?
may they have fastened?

V-ing perfect

may I have been fastening?
may you have been fastening?
may he have been fastening?
may we have been fastening?
may you have been fastening?
may they have been fastening?

Interro-negative form

Simple form

may I not fasten?
may you not fasten?
may he not fasten?
may we not fasten?
may you not fasten?
may they not fasten?

V-ing form

may I not be fastening?
may you not be fastening?
may he not be fastening?
may we not be fastening?
may you not be fastening?
may they not be fastening?

Perfect

may I not have fastened?
may you not have fastened?
may he not have fastened?
may we not have fastened?
may you not have fastened?
may they not have fastened?

V-ing perfect

may I not have been fastening?
may you not have been fastening?
may he not have been fastening?
may we not have been fastening?
may you not have been fastening?
may they not have been fastening?