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