I must fidget you must fidget he must fidget we must fidget you must fidget they must fidget
V-ing form
I must be fidgeting you must be fidgeting he must be fidgeting we must be fidgeting you must be fidgeting they must be fidgeting
Perfect
I must have fidgeted you must have fidgeted he must have fidgeted we must have fidgeted you must have fidgeted they must have fidgeted
V-ing perfect
I must have been fidgeting you must have been fidgeting he must have been fidgeting we must have been fidgeting you must have been fidgeting they must have been fidgeting
Negation
Simple form
I must not fidget you must not fidget he must not fidget we must not fidget you must not fidget they must not fidget
V-ing form
I must not be fidgeting you must not be fidgeting he must not be fidgeting we must not be fidgeting you must not be fidgeting they must not be fidgeting
Perfect
I must not have fidgeted you must not have fidgeted he must not have fidgeted we must not have fidgeted you must not have fidgeted they must not have fidgeted
V-ing perfect
I must not have been fidgeting you must not have been fidgeting he must not have been fidgeting we must not have been fidgeting you must not have been fidgeting they must not have been fidgeting
Interrogative form
Simple form
must I fidget? must you fidget? must he fidget? must we fidget? must you fidget? must they fidget?
V-ing form
must I be fidgeting? must you be fidgeting? must he be fidgeting? must we be fidgeting? must you be fidgeting? must they be fidgeting?
Perfect
must I have fidgeted? must you have fidgeted? must he have fidgeted? must we have fidgeted? must you have fidgeted? must they have fidgeted?
V-ing perfect
must I have been fidgeting? must you have been fidgeting? must he have been fidgeting? must we have been fidgeting? must you have been fidgeting? must they have been fidgeting?
Interro-negative form
Simple form
must I not fidget? must you not fidget? must he not fidget? must we not fidget? must you not fidget? must they not fidget?
V-ing form
must I not be fidgeting? must you not be fidgeting? must he not be fidgeting? must we not be fidgeting? must you not be fidgeting? must they not be fidgeting?
Perfect
must I not have fidgeted? must you not have fidgeted? must he not have fidgeted? must we not have fidgeted? must you not have fidgeted? must they not have fidgeted?
V-ing perfect
must I not have been fidgeting? must you not have been fidgeting? must he not have been fidgeting? must we not have been fidgeting? must you not have been fidgeting? must they not have been fidgeting?