English verb conjugation
MUST CLING

Irregular verb: cling - clung - clung

Affirmation

Simple form	V-ing form
I must cling you must cling she must cling we must cling you must cling they must cling	I must be clinging you must be clinging she must be clinging we must be clinging you must be clinging they must be clinging
Perfect	V-ing perfect
I must have clung you must have clung she must have clung we must have clung you must have clung they must have clung	I must have been clinging you must have been clinging she must have been clinging we must have been clinging you must have been clinging they must have been clinging

Negation

Simple form	V-ing form
I must not cling you must not cling she must not cling we must not cling you must not cling they must not cling	I must not be clinging you must not be clinging she must not be clinging we must not be clinging you must not be clinging they must not be clinging
Perfect	V-ing perfect
I must not have clung you must not have clung she must not have clung we must not have clung you must not have clung they must not have clung	I must not have been clinging you must not have been clinging she must not have been clinging we must not have been clinging you must not have been clinging they must not have been clinging

Interrogative form

Simple form	V-ing form
must I cling? must you cling? must she cling? must we cling? must you cling? must they cling?	must I be clinging? must you be clinging? must she be clinging? must we be clinging? must you be clinging? must they be clinging?
Perfect	V-ing perfect
must I have clung? must you have clung? must she have clung? must we have clung? must you have clung? must they have clung?	must I have been clinging? must you have been clinging? must she have been clinging? must we have been clinging? must you have been clinging? must they have been clinging?

Interro-negative form

Simple form	V-ing form
must I not cling? must you not cling? must she not cling? must we not cling? must you not cling? must they not cling?	must I not be clinging? must you not be clinging? must she not be clinging? must we not be clinging? must you not be clinging? must they not be clinging?
Perfect	V-ing perfect
must I not have clung? must you not have clung? must she not have clung? must we not have clung? must you not have clung? must they not have clung?	must I not have been clinging? must you not have been clinging? must she not have been clinging? must we not have been clinging? must you not have been clinging? must they not have been clinging?