I must discontent you must discontent he must discontent we must discontent you must discontent they must discontent
V-ing form
I must be discontenting you must be discontenting he must be discontenting we must be discontenting you must be discontenting they must be discontenting
Perfect
I must have discontented you must have discontented he must have discontented we must have discontented you must have discontented they must have discontented
V-ing perfect
I must have been discontenting you must have been discontenting he must have been discontenting we must have been discontenting you must have been discontenting they must have been discontenting
Negation
Simple form
I must not discontent you must not discontent he must not discontent we must not discontent you must not discontent they must not discontent
V-ing form
I must not be discontenting you must not be discontenting he must not be discontenting we must not be discontenting you must not be discontenting they must not be discontenting
Perfect
I must not have discontented you must not have discontented he must not have discontented we must not have discontented you must not have discontented they must not have discontented
V-ing perfect
I must not have been discontenting you must not have been discontenting he must not have been discontenting we must not have been discontenting you must not have been discontenting they must not have been discontenting
Interrogative form
Simple form
must I discontent? must you discontent? must he discontent? must we discontent? must you discontent? must they discontent?
V-ing form
must I be discontenting? must you be discontenting? must he be discontenting? must we be discontenting? must you be discontenting? must they be discontenting?
Perfect
must I have discontented? must you have discontented? must he have discontented? must we have discontented? must you have discontented? must they have discontented?
V-ing perfect
must I have been discontenting? must you have been discontenting? must he have been discontenting? must we have been discontenting? must you have been discontenting? must they have been discontenting?
Interro-negative form
Simple form
must I not discontent? must you not discontent? must he not discontent? must we not discontent? must you not discontent? must they not discontent?
V-ing form
must I not be discontenting? must you not be discontenting? must he not be discontenting? must we not be discontenting? must you not be discontenting? must they not be discontenting?
Perfect
must I not have discontented? must you not have discontented? must he not have discontented? must we not have discontented? must you not have discontented? must they not have discontented?
V-ing perfect
must I not have been discontenting? must you not have been discontenting? must he not have been discontenting? must we not have been discontenting? must you not have been discontenting? must they not have been discontenting?