I must acclimatize you must acclimatize he must acclimatize we must acclimatize you must acclimatize they must acclimatize
V-ing form
I must be acclimatizing you must be acclimatizing he must be acclimatizing we must be acclimatizing you must be acclimatizing they must be acclimatizing
Perfect
I must have acclimatized you must have acclimatized he must have acclimatized we must have acclimatized you must have acclimatized they must have acclimatized
V-ing perfect
I must have been acclimatizing you must have been acclimatizing he must have been acclimatizing we must have been acclimatizing you must have been acclimatizing they must have been acclimatizing
Negation
Simple form
I mustn't acclimatize you mustn't acclimatize he mustn't acclimatize we mustn't acclimatize you mustn't acclimatize they mustn't acclimatize
V-ing form
I mustn't be acclimatizing you mustn't be acclimatizing he mustn't be acclimatizing we mustn't be acclimatizing you mustn't be acclimatizing they mustn't be acclimatizing
Perfect
I mustn't have acclimatized you mustn't have acclimatized he mustn't have acclimatized we mustn't have acclimatized you mustn't have acclimatized they mustn't have acclimatized
V-ing perfect
I mustn't have been acclimatizing you mustn't have been acclimatizing he mustn't have been acclimatizing we mustn't have been acclimatizing you mustn't have been acclimatizing they mustn't have been acclimatizing
Interrogative form
Simple form
must I acclimatize? must you acclimatize? must he acclimatize? must we acclimatize? must you acclimatize? must they acclimatize?
V-ing form
must I be acclimatizing? must you be acclimatizing? must he be acclimatizing? must we be acclimatizing? must you be acclimatizing? must they be acclimatizing?
Perfect
must I have acclimatized? must you have acclimatized? must he have acclimatized? must we have acclimatized? must you have acclimatized? must they have acclimatized?
V-ing perfect
must I have been acclimatizing? must you have been acclimatizing? must he have been acclimatizing? must we have been acclimatizing? must you have been acclimatizing? must they have been acclimatizing?
Interro-negative form
Simple form
mustn't I acclimatize? mustn't you acclimatize? mustn't he acclimatize? mustn't we acclimatize? mustn't you acclimatize? mustn't they acclimatize?
V-ing form
mustn't I be acclimatizing? mustn't you be acclimatizing? mustn't he be acclimatizing? mustn't we be acclimatizing? mustn't you be acclimatizing? mustn't they be acclimatizing?
Perfect
mustn't I have acclimatized? mustn't you have acclimatized? mustn't he have acclimatized? mustn't we have acclimatized? mustn't you have acclimatized? mustn't they have acclimatized?
V-ing perfect
mustn't I have been acclimatizing? mustn't you have been acclimatizing? mustn't he have been acclimatizing? mustn't we have been acclimatizing? mustn't you have been acclimatizing? mustn't they have been acclimatizing?