I must moisten you must moisten he must moisten we must moisten you must moisten they must moisten
V-ing form
I must be moistening you must be moistening he must be moistening we must be moistening you must be moistening they must be moistening
Perfect
I must have moistened you must have moistened he must have moistened we must have moistened you must have moistened they must have moistened
V-ing perfect
I must have been moistening you must have been moistening he must have been moistening we must have been moistening you must have been moistening they must have been moistening
Negation
Simple form
I must not moisten you must not moisten he must not moisten we must not moisten you must not moisten they must not moisten
V-ing form
I must not be moistening you must not be moistening he must not be moistening we must not be moistening you must not be moistening they must not be moistening
Perfect
I must not have moistened you must not have moistened he must not have moistened we must not have moistened you must not have moistened they must not have moistened
V-ing perfect
I must not have been moistening you must not have been moistening he must not have been moistening we must not have been moistening you must not have been moistening they must not have been moistening
Interrogative form
Simple form
must I moisten? must you moisten? must he moisten? must we moisten? must you moisten? must they moisten?
V-ing form
must I be moistening? must you be moistening? must he be moistening? must we be moistening? must you be moistening? must they be moistening?
Perfect
must I have moistened? must you have moistened? must he have moistened? must we have moistened? must you have moistened? must they have moistened?
V-ing perfect
must I have been moistening? must you have been moistening? must he have been moistening? must we have been moistening? must you have been moistening? must they have been moistening?
Interro-negative form
Simple form
must I not moisten? must you not moisten? must he not moisten? must we not moisten? must you not moisten? must they not moisten?
V-ing form
must I not be moistening? must you not be moistening? must he not be moistening? must we not be moistening? must you not be moistening? must they not be moistening?
Perfect
must I not have moistened? must you not have moistened? must he not have moistened? must we not have moistened? must you not have moistened? must they not have moistened?
V-ing perfect
must I not have been moistening? must you not have been moistening? must he not have been moistening? must we not have been moistening? must you not have been moistening? must they not have been moistening?