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