I can invent you can invent he can invent we can invent you can invent they can invent
Forme en V-ing
I can be inventing you can be inventing he can be inventing we can be inventing you can be inventing they can be inventing
Perfect
I can have invented you can have invented he can have invented we can have invented you can have invented they can have invented
Perfect en V-ing
I can have been inventing you can have been inventing he can have been inventing we can have been inventing you can have been inventing they can have been inventing
Négation
Forme simple
I can't invent you can't invent he can't invent we can't invent you can't invent they can't invent
Forme en V-ing
I can't be inventing you can't be inventing he can't be inventing we can't be inventing you can't be inventing they can't be inventing
Perfect
I can't have invented you can't have invented he can't have invented we can't have invented you can't have invented they can't have invented
Perfect en V-ing
I can't have been inventing you can't have been inventing he can't have been inventing we can't have been inventing you can't have been inventing they can't have been inventing
Forme interrogative
Forme simple
can I invent? can you invent? can he invent? can we invent? can you invent? can they invent?
Forme en V-ing
can I be inventing? can you be inventing? can he be inventing? can we be inventing? can you be inventing? can they be inventing?
Perfect
can I have invented? can you have invented? can he have invented? can we have invented? can you have invented? can they have invented?
Perfect en V-ing
can I have been inventing? can you have been inventing? can he have been inventing? can we have been inventing? can you have been inventing? can they have been inventing?
Forme interro-négative
Forme simple
can't I invent? can't you invent? can't he invent? can't we invent? can't you invent? can't they invent?
Forme en V-ing
can't I be inventing? can't you be inventing? can't he be inventing? can't we be inventing? can't you be inventing? can't they be inventing?
Perfect
can't I have invented? can't you have invented? can't he have invented? can't we have invented? can't you have invented? can't they have invented?
Perfect en V-ing
can't I have been inventing? can't you have been inventing? can't he have been inventing? can't we have been inventing? can't you have been inventing? can't they have been inventing?