Conjugación del verbo inglés
MUST TREAD

Verbo irregular: tread - trod - trod, trodden

Afirmación

Forma simple	Forma con V-ing
I must tread you must tread she must tread we must tread you must tread they must tread	I must be treading you must be treading she must be treading we must be treading you must be treading they must be treading
Perfecto	Perfecto con V-ing
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	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

Negación

Forma simple	Forma con V-ing
I must not tread you must not tread she must not tread we must not tread you must not tread they must not tread	I must not be treading you must not be treading she must not be treading we must not be treading you must not be treading they must not be treading
Perfecto	Perfecto con V-ing
I must not have trod, trodden you must not have trod, trodden she must not have trod, trodden we must not have trod, trodden you must not have trod, trodden they must not have trod, trodden	I must not have been treading you must not have been treading she must not have been treading we must not have been treading you must not have been treading they must not have been treading

Forma interrogativa

Forma simple	Forma con V-ing
must I tread? must you tread? must she tread? must we tread? must you tread? must they tread?	must I be treading? must you be treading? must she be treading? must we be treading? must you be treading? must they be treading?
Perfecto	Perfecto con V-ing
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?	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?

Forma interro-negativa

Forma simple	Forma con V-ing
must I not tread? must you not tread? must she not tread? must we not tread? must you not tread? must they not tread?	must I not be treading? must you not be treading? must she not be treading? must we not be treading? must you not be treading? must they not be treading?
Perfecto	Perfecto con V-ing
must I not have trod, trodden? must you not have trod, trodden? must she not have trod, trodden? must we not have trod, trodden? must you not have trod, trodden? must they not have trod, trodden?	must I not have been treading? must you not have been treading? must she not have been treading? must we not have been treading? must you not have been treading? must they not have been treading?