I could marble you could marble he could marble we could marble you could marble they could marble
Forme en V-ing
I could be marbling you could be marbling he could be marbling we could be marbling you could be marbling they could be marbling
Perfect
I could have marbled you could have marbled he could have marbled we could have marbled you could have marbled they could have marbled
Perfect en V-ing
I could have been marbling you could have been marbling he could have been marbling we could have been marbling you could have been marbling they could have been marbling
Négation
Forme simple
I couldn't marble you couldn't marble he couldn't marble we couldn't marble you couldn't marble they couldn't marble
Forme en V-ing
I couldn't be marbling you couldn't be marbling he couldn't be marbling we couldn't be marbling you couldn't be marbling they couldn't be marbling
Perfect
I couldn't have marbled you couldn't have marbled he couldn't have marbled we couldn't have marbled you couldn't have marbled they couldn't have marbled
Perfect en V-ing
I couldn't have been marbling you couldn't have been marbling he couldn't have been marbling we couldn't have been marbling you couldn't have been marbling they couldn't have been marbling
Forme interrogative
Forme simple
could I marble? could you marble? could he marble? could we marble? could you marble? could they marble?
Forme en V-ing
could I be marbling? could you be marbling? could he be marbling? could we be marbling? could you be marbling? could they be marbling?
Perfect
could I have marbled? could you have marbled? could he have marbled? could we have marbled? could you have marbled? could they have marbled?
Perfect en V-ing
could I have been marbling? could you have been marbling? could he have been marbling? could we have been marbling? could you have been marbling? could they have been marbling?
Forme interro-négative
Forme simple
couldn't I marble? couldn't you marble? couldn't he marble? couldn't we marble? couldn't you marble? couldn't they marble?
Forme en V-ing
couldn't I be marbling? couldn't you be marbling? couldn't he be marbling? couldn't we be marbling? couldn't you be marbling? couldn't they be marbling?
Perfect
couldn't I have marbled? couldn't you have marbled? couldn't he have marbled? couldn't we have marbled? couldn't you have marbled? couldn't they have marbled?
Perfect en V-ing
couldn't I have been marbling? couldn't you have been marbling? couldn't he have been marbling? couldn't we have been marbling? couldn't you have been marbling? couldn't they have been marbling?