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