I can concoct you can concoct he can concoct we can concoct you can concoct they can concoct
Forme en V-ing
I can be concocting you can be concocting he can be concocting we can be concocting you can be concocting they can be concocting
Perfect
I can have concocted you can have concocted he can have concocted we can have concocted you can have concocted they can have concocted
Perfect en V-ing
I can have been concocting you can have been concocting he can have been concocting we can have been concocting you can have been concocting they can have been concocting
Négation
Forme simple
I cannot concoct you cannot concoct he cannot concoct we cannot concoct you cannot concoct they cannot concoct
Forme en V-ing
I cannot be concocting you cannot be concocting he cannot be concocting we cannot be concocting you cannot be concocting they cannot be concocting
Perfect
I cannot have concocted you cannot have concocted he cannot have concocted we cannot have concocted you cannot have concocted they cannot have concocted
Perfect en V-ing
I cannot have been concocting you cannot have been concocting he cannot have been concocting we cannot have been concocting you cannot have been concocting they cannot have been concocting
Forme interrogative
Forme simple
can I concoct? can you concoct? can he concoct? can we concoct? can you concoct? can they concoct?
Forme en V-ing
can I be concocting? can you be concocting? can he be concocting? can we be concocting? can you be concocting? can they be concocting?
Perfect
can I have concocted? can you have concocted? can he have concocted? can we have concocted? can you have concocted? can they have concocted?
Perfect en V-ing
can I have been concocting? can you have been concocting? can he have been concocting? can we have been concocting? can you have been concocting? can they have been concocting?
Forme interro-négative
Forme simple
can I not concoct? can you not concoct? can he not concoct? can we not concoct? can you not concoct? can they not concoct?
Forme en V-ing
can I not be concocting? can you not be concocting? can he not be concocting? can we not be concocting? can you not be concocting? can they not be concocting?
Perfect
can I not have concocted? can you not have concocted? can he not have concocted? can we not have concocted? can you not have concocted? can they not have concocted?
Perfect en V-ing
can I not have been concocting? can you not have been concocting? can he not have been concocting? can we not have been concocting? can you not have been concocting? can they not have been concocting?