English verb conjugation MAY CATALYSE

Regular verb: catalyse - catalysed - catalysed

Affirmation

Simple form

I may catalyse
you may catalyse
he may catalyse
we may catalyse
you may catalyse
they may catalyse

V-ing form

I may be catalysing
you may be catalysing
he may be catalysing
we may be catalysing
you may be catalysing
they may be catalysing

Perfect

I may have catalysed
you may have catalysed
he may have catalysed
we may have catalysed
you may have catalysed
they may have catalysed

V-ing perfect

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

Negation

Simple form

I mayn't catalyse
you mayn't catalyse
he mayn't catalyse
we mayn't catalyse
you mayn't catalyse
they mayn't catalyse

V-ing form

I mayn't be catalysing
you mayn't be catalysing
he mayn't be catalysing
we mayn't be catalysing
you mayn't be catalysing
they mayn't be catalysing

Perfect

I mayn't have catalysed
you mayn't have catalysed
he mayn't have catalysed
we mayn't have catalysed
you mayn't have catalysed
they mayn't have catalysed

V-ing perfect

I mayn't have been catalysing
you mayn't have been catalysing
he mayn't have been catalysing
we mayn't have been catalysing
you mayn't have been catalysing
they mayn't have been catalysing

Interrogative form

Simple form

may I catalyse?
may you catalyse?
may he catalyse?
may we catalyse?
may you catalyse?
may they catalyse?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

mayn't I catalyse?
mayn't you catalyse?
mayn't he catalyse?
mayn't we catalyse?
mayn't you catalyse?
mayn't they catalyse?

V-ing form

mayn't I be catalysing?
mayn't you be catalysing?
mayn't he be catalysing?
mayn't we be catalysing?
mayn't you be catalysing?
mayn't they be catalysing?

Perfect

mayn't I have catalysed?
mayn't you have catalysed?
mayn't he have catalysed?
mayn't we have catalysed?
mayn't you have catalysed?
mayn't they have catalysed?

V-ing perfect

mayn't I have been catalysing?
mayn't you have been catalysing?
mayn't he have been catalysing?
mayn't we have been catalysing?
mayn't you have been catalysing?
mayn't they have been catalysing?

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