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