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