I must salivate you must salivate he must salivate we must salivate you must salivate they must salivate
V-ing form
I must be salivating you must be salivating he must be salivating we must be salivating you must be salivating they must be salivating
Perfect
I must have salivated you must have salivated he must have salivated we must have salivated you must have salivated they must have salivated
V-ing perfect
I must have been salivating you must have been salivating he must have been salivating we must have been salivating you must have been salivating they must have been salivating
Negation
Simple form
I must not salivate you must not salivate he must not salivate we must not salivate you must not salivate they must not salivate
V-ing form
I must not be salivating you must not be salivating he must not be salivating we must not be salivating you must not be salivating they must not be salivating
Perfect
I must not have salivated you must not have salivated he must not have salivated we must not have salivated you must not have salivated they must not have salivated
V-ing perfect
I must not have been salivating you must not have been salivating he must not have been salivating we must not have been salivating you must not have been salivating they must not have been salivating
Interrogative form
Simple form
must I salivate? must you salivate? must he salivate? must we salivate? must you salivate? must they salivate?
V-ing form
must I be salivating? must you be salivating? must he be salivating? must we be salivating? must you be salivating? must they be salivating?
Perfect
must I have salivated? must you have salivated? must he have salivated? must we have salivated? must you have salivated? must they have salivated?
V-ing perfect
must I have been salivating? must you have been salivating? must he have been salivating? must we have been salivating? must you have been salivating? must they have been salivating?
Interro-negative form
Simple form
must I not salivate? must you not salivate? must he not salivate? must we not salivate? must you not salivate? must they not salivate?
V-ing form
must I not be salivating? must you not be salivating? must he not be salivating? must we not be salivating? must you not be salivating? must they not be salivating?
Perfect
must I not have salivated? must you not have salivated? must he not have salivated? must we not have salivated? must you not have salivated? must they not have salivated?
V-ing perfect
must I not have been salivating? must you not have been salivating? must he not have been salivating? must we not have been salivating? must you not have been salivating? must they not have been salivating?