English verb conjugation MUST TREAD

Irregular verb: tread - trod - trod, trodden

Affirmation

Simple form

I must tread
you must tread
she must tread
we must tread
you must tread
they must tread

V-ing form

I must be treading
you must be treading
she must be treading
we must be treading
you must be treading
they must be treading

Perfect

I must have trod, trodden
you must have trod, trodden
she must have trod, trodden
we must have trod, trodden
you must have trod, trodden
they must have trod, trodden

V-ing perfect

I must have been treading
you must have been treading
she must have been treading
we must have been treading
you must have been treading
they must have been treading

Negation

Simple form

I mustn't tread
you mustn't tread
she mustn't tread
we mustn't tread
you mustn't tread
they mustn't tread

V-ing form

I mustn't be treading
you mustn't be treading
she mustn't be treading
we mustn't be treading
you mustn't be treading
they mustn't be treading

Perfect

I mustn't have trod, trodden
you mustn't have trod, trodden
she mustn't have trod, trodden
we mustn't have trod, trodden
you mustn't have trod, trodden
they mustn't have trod, trodden

V-ing perfect

I mustn't have been treading
you mustn't have been treading
she mustn't have been treading
we mustn't have been treading
you mustn't have been treading
they mustn't have been treading

Interrogative form

Simple form

must I tread?
must you tread?
must she tread?
must we tread?
must you tread?
must they tread?

V-ing form

must I be treading?
must you be treading?
must she be treading?
must we be treading?
must you be treading?
must they be treading?

Perfect

must I have trod, trodden?
must you have trod, trodden?
must she have trod, trodden?
must we have trod, trodden?
must you have trod, trodden?
must they have trod, trodden?

V-ing perfect

must I have been treading?
must you have been treading?
must she have been treading?
must we have been treading?
must you have been treading?
must they have been treading?

Interro-negative form

Simple form

mustn't I tread?
mustn't you tread?
mustn't she tread?
mustn't we tread?
mustn't you tread?
mustn't they tread?

V-ing form

mustn't I be treading?
mustn't you be treading?
mustn't she be treading?
mustn't we be treading?
mustn't you be treading?
mustn't they be treading?

Perfect

mustn't I have trod, trodden?
mustn't you have trod, trodden?
mustn't she have trod, trodden?
mustn't we have trod, trodden?
mustn't you have trod, trodden?
mustn't they have trod, trodden?

V-ing perfect

mustn't I have been treading?
mustn't you have been treading?
mustn't she have been treading?
mustn't we have been treading?
mustn't you have been treading?
mustn't they have been treading?

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