I must revolve you must revolve she must revolve we must revolve you must revolve they must revolve
V-ing form
I must be revolving you must be revolving she must be revolving we must be revolving you must be revolving they must be revolving
Perfect
I must have revolved you must have revolved she must have revolved we must have revolved you must have revolved they must have revolved
V-ing perfect
I must have been revolving you must have been revolving she must have been revolving we must have been revolving you must have been revolving they must have been revolving
Negation
Simple form
I must not revolve you must not revolve she must not revolve we must not revolve you must not revolve they must not revolve
V-ing form
I must not be revolving you must not be revolving she must not be revolving we must not be revolving you must not be revolving they must not be revolving
Perfect
I must not have revolved you must not have revolved she must not have revolved we must not have revolved you must not have revolved they must not have revolved
V-ing perfect
I must not have been revolving you must not have been revolving she must not have been revolving we must not have been revolving you must not have been revolving they must not have been revolving
Interrogative form
Simple form
must I revolve? must you revolve? must she revolve? must we revolve? must you revolve? must they revolve?
V-ing form
must I be revolving? must you be revolving? must she be revolving? must we be revolving? must you be revolving? must they be revolving?
Perfect
must I have revolved? must you have revolved? must she have revolved? must we have revolved? must you have revolved? must they have revolved?
V-ing perfect
must I have been revolving? must you have been revolving? must she have been revolving? must we have been revolving? must you have been revolving? must they have been revolving?
Interro-negative form
Simple form
must I not revolve? must you not revolve? must she not revolve? must we not revolve? must you not revolve? must they not revolve?
V-ing form
must I not be revolving? must you not be revolving? must she not be revolving? must we not be revolving? must you not be revolving? must they not be revolving?
Perfect
must I not have revolved? must you not have revolved? must she not have revolved? must we not have revolved? must you not have revolved? must they not have revolved?
V-ing perfect
must I not have been revolving? must you not have been revolving? must she not have been revolving? must we not have been revolving? must you not have been revolving? must they not have been revolving?