I must counterweight you must counterweight he must counterweight we must counterweight you must counterweight they must counterweight
Forme en V-ing
I must be counterweighting you must be counterweighting he must be counterweighting we must be counterweighting you must be counterweighting they must be counterweighting
Perfect
I must have counterweighted you must have counterweighted he must have counterweighted we must have counterweighted you must have counterweighted they must have counterweighted
Perfect en V-ing
I must have been counterweighting you must have been counterweighting he must have been counterweighting we must have been counterweighting you must have been counterweighting they must have been counterweighting
Négation
Forme simple
I mustn't counterweight you mustn't counterweight he mustn't counterweight we mustn't counterweight you mustn't counterweight they mustn't counterweight
Forme en V-ing
I mustn't be counterweighting you mustn't be counterweighting he mustn't be counterweighting we mustn't be counterweighting you mustn't be counterweighting they mustn't be counterweighting
Perfect
I mustn't have counterweighted you mustn't have counterweighted he mustn't have counterweighted we mustn't have counterweighted you mustn't have counterweighted they mustn't have counterweighted
Perfect en V-ing
I mustn't have been counterweighting you mustn't have been counterweighting he mustn't have been counterweighting we mustn't have been counterweighting you mustn't have been counterweighting they mustn't have been counterweighting
Forme interrogative
Forme simple
must I counterweight? must you counterweight? must he counterweight? must we counterweight? must you counterweight? must they counterweight?
Forme en V-ing
must I be counterweighting? must you be counterweighting? must he be counterweighting? must we be counterweighting? must you be counterweighting? must they be counterweighting?
Perfect
must I have counterweighted? must you have counterweighted? must he have counterweighted? must we have counterweighted? must you have counterweighted? must they have counterweighted?
Perfect en V-ing
must I have been counterweighting? must you have been counterweighting? must he have been counterweighting? must we have been counterweighting? must you have been counterweighting? must they have been counterweighting?
Forme interro-négative
Forme simple
mustn't I counterweight? mustn't you counterweight? mustn't he counterweight? mustn't we counterweight? mustn't you counterweight? mustn't they counterweight?
Forme en V-ing
mustn't I be counterweighting? mustn't you be counterweighting? mustn't he be counterweighting? mustn't we be counterweighting? mustn't you be counterweighting? mustn't they be counterweighting?
Perfect
mustn't I have counterweighted? mustn't you have counterweighted? mustn't he have counterweighted? mustn't we have counterweighted? mustn't you have counterweighted? mustn't they have counterweighted?
Perfect en V-ing
mustn't I have been counterweighting? mustn't you have been counterweighting? mustn't he have been counterweighting? mustn't we have been counterweighting? mustn't you have been counterweighting? mustn't they have been counterweighting?