Attention, ce verbe peut ne pas exister, la conjugaison est donnée à titre d'exemple.
Affirmation
Forme simple
I must achieve achieve you must achieve achieve he must achieve achieve we must achieve achieve you must achieve achieve they must achieve achieve
Forme en V-ing
I must be achieve achieving you must be achieve achieving he must be achieve achieving we must be achieve achieving you must be achieve achieving they must be achieve achieving
Perfect
I must have achieve achieved you must have achieve achieved he must have achieve achieved we must have achieve achieved you must have achieve achieved they must have achieve achieved
Perfect en V-ing
I must have been achieve achieving you must have been achieve achieving he must have been achieve achieving we must have been achieve achieving you must have been achieve achieving they must have been achieve achieving
Négation
Forme simple
I mustn't achieve achieve you mustn't achieve achieve he mustn't achieve achieve we mustn't achieve achieve you mustn't achieve achieve they mustn't achieve achieve
Forme en V-ing
I mustn't be achieve achieving you mustn't be achieve achieving he mustn't be achieve achieving we mustn't be achieve achieving you mustn't be achieve achieving they mustn't be achieve achieving
Perfect
I mustn't have achieve achieved you mustn't have achieve achieved he mustn't have achieve achieved we mustn't have achieve achieved you mustn't have achieve achieved they mustn't have achieve achieved
Perfect en V-ing
I mustn't have been achieve achieving you mustn't have been achieve achieving he mustn't have been achieve achieving we mustn't have been achieve achieving you mustn't have been achieve achieving they mustn't have been achieve achieving
Forme interrogative
Forme simple
must I achieve achieve? must you achieve achieve? must he achieve achieve? must we achieve achieve? must you achieve achieve? must they achieve achieve?
Forme en V-ing
must I be achieve achieving? must you be achieve achieving? must he be achieve achieving? must we be achieve achieving? must you be achieve achieving? must they be achieve achieving?
Perfect
must I have achieve achieved? must you have achieve achieved? must he have achieve achieved? must we have achieve achieved? must you have achieve achieved? must they have achieve achieved?
Perfect en V-ing
must I have been achieve achieving? must you have been achieve achieving? must he have been achieve achieving? must we have been achieve achieving? must you have been achieve achieving? must they have been achieve achieving?
Forme interro-négative
Forme simple
mustn't I achieve achieve? mustn't you achieve achieve? mustn't he achieve achieve? mustn't we achieve achieve? mustn't you achieve achieve? mustn't they achieve achieve?
Forme en V-ing
mustn't I be achieve achieving? mustn't you be achieve achieving? mustn't he be achieve achieving? mustn't we be achieve achieving? mustn't you be achieve achieving? mustn't they be achieve achieving?
Perfect
mustn't I have achieve achieved? mustn't you have achieve achieved? mustn't he have achieve achieved? mustn't we have achieve achieved? mustn't you have achieve achieved? mustn't they have achieve achieved?
Perfect en V-ing
mustn't I have been achieve achieving? mustn't you have been achieve achieving? mustn't he have been achieve achieving? mustn't we have been achieve achieving? mustn't you have been achieve achieving? mustn't they have been achieve achieving?