English verb conjugation
MUST REGARD

Regular verb: regard - regarded - regarded

Affirmation

Simple form	V-ing form
I must regard you must regard he must regard we must regard you must regard they must regard	I must be regarding you must be regarding he must be regarding we must be regarding you must be regarding they must be regarding
Perfect	V-ing perfect
I must have regarded you must have regarded he must have regarded we must have regarded you must have regarded they must have regarded	I must have been regarding you must have been regarding he must have been regarding we must have been regarding you must have been regarding they must have been regarding

Negation

Simple form	V-ing form
I mustn't regard you mustn't regard he mustn't regard we mustn't regard you mustn't regard they mustn't regard	I mustn't be regarding you mustn't be regarding he mustn't be regarding we mustn't be regarding you mustn't be regarding they mustn't be regarding
Perfect	V-ing perfect
I mustn't have regarded you mustn't have regarded he mustn't have regarded we mustn't have regarded you mustn't have regarded they mustn't have regarded	I mustn't have been regarding you mustn't have been regarding he mustn't have been regarding we mustn't have been regarding you mustn't have been regarding they mustn't have been regarding

Interrogative form

Simple form	V-ing form
must I regard? must you regard? must he regard? must we regard? must you regard? must they regard?	must I be regarding? must you be regarding? must he be regarding? must we be regarding? must you be regarding? must they be regarding?
Perfect	V-ing perfect
must I have regarded? must you have regarded? must he have regarded? must we have regarded? must you have regarded? must they have regarded?	must I have been regarding? must you have been regarding? must he have been regarding? must we have been regarding? must you have been regarding? must they have been regarding?

Interro-negative form

Simple form	V-ing form
mustn't I regard? mustn't you regard? mustn't he regard? mustn't we regard? mustn't you regard? mustn't they regard?	mustn't I be regarding? mustn't you be regarding? mustn't he be regarding? mustn't we be regarding? mustn't you be regarding? mustn't they be regarding?
Perfect	V-ing perfect
mustn't I have regarded? mustn't you have regarded? mustn't he have regarded? mustn't we have regarded? mustn't you have regarded? mustn't they have regarded?	mustn't I have been regarding? mustn't you have been regarding? mustn't he have been regarding? mustn't we have been regarding? mustn't you have been regarding? mustn't they have been regarding?