English verb conjugation MAY TOUGHEN

Regular verb: toughen - toughened - toughened

Affirmation

Simple form

I may toughen
you may toughen
he may toughen
we may toughen
you may toughen
they may toughen

V-ing form

I may be toughening
you may be toughening
he may be toughening
we may be toughening
you may be toughening
they may be toughening

Perfect

I may have toughened
you may have toughened
he may have toughened
we may have toughened
you may have toughened
they may have toughened

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

may I toughen?
may you toughen?
may he toughen?
may we toughen?
may you toughen?
may they toughen?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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