English verb conjugation
MUST HARBOUR

Regular verb: harbour - harboured - harboured

Affirmation

Simple form	V-ing form
I must harbour you must harbour he must harbour we must harbour you must harbour they must harbour	I must be harbouring you must be harbouring he must be harbouring we must be harbouring you must be harbouring they must be harbouring
Perfect	V-ing perfect
I must have harboured you must have harboured he must have harboured we must have harboured you must have harboured they must have harboured	I must have been harbouring you must have been harbouring he must have been harbouring we must have been harbouring you must have been harbouring they must have been harbouring

Negation

Simple form	V-ing form
I must not harbour you must not harbour he must not harbour we must not harbour you must not harbour they must not harbour	I must not be harbouring you must not be harbouring he must not be harbouring we must not be harbouring you must not be harbouring they must not be harbouring
Perfect	V-ing perfect
I must not have harboured you must not have harboured he must not have harboured we must not have harboured you must not have harboured they must not have harboured	I must not have been harbouring you must not have been harbouring he must not have been harbouring we must not have been harbouring you must not have been harbouring they must not have been harbouring

Interrogative form

Simple form	V-ing form
must I harbour? must you harbour? must he harbour? must we harbour? must you harbour? must they harbour?	must I be harbouring? must you be harbouring? must he be harbouring? must we be harbouring? must you be harbouring? must they be harbouring?
Perfect	V-ing perfect
must I have harboured? must you have harboured? must he have harboured? must we have harboured? must you have harboured? must they have harboured?	must I have been harbouring? must you have been harbouring? must he have been harbouring? must we have been harbouring? must you have been harbouring? must they have been harbouring?

Interro-negative form

Simple form	V-ing form
must I not harbour? must you not harbour? must he not harbour? must we not harbour? must you not harbour? must they not harbour?	must I not be harbouring? must you not be harbouring? must he not be harbouring? must we not be harbouring? must you not be harbouring? must they not be harbouring?
Perfect	V-ing perfect
must I not have harboured? must you not have harboured? must he not have harboured? must we not have harboured? must you not have harboured? must they not have harboured?	must I not have been harbouring? must you not have been harbouring? must he not have been harbouring? must we not have been harbouring? must you not have been harbouring? must they not have been harbouring?