English verb conjugation MUST SNOW

Regular verb: snow - snowed - snowed

Affirmation

Simple form

-
-
it must snow
-
-
-

V-ing form

-
-
it must be snowing
-
-
-

Perfect

-
-
it must have snowed
-
-
-

V-ing perfect

-
-
it must have been snowing
-
-
-

Simple form

-
-
it mustn't snow
-
-
-

V-ing form

-
-
it mustn't be snowing
-
-
-

Perfect

-
-
it mustn't have snowed
-
-
-

V-ing perfect

-
-
it mustn't have been snowing
-
-
-

Simple form

-
-
must it snow?
-
-
-

V-ing form

-
-
must it be snowing?
-
-
-

Perfect

-
-
must it have snowed?
-
-
-

V-ing perfect

-
-
must it have been snowing?
-
-
-

Simple form

-
-
mustn't it snow?
-
-
-

V-ing form

-
-
mustn't it be snowing?
-
-
-

Perfect

-
-
mustn't it have snowed?
-
-
-

V-ing perfect

-
-
mustn't it have been snowing?
-
-
-