I could stagnate you could stagnate she could stagnate we could stagnate you could stagnate they could stagnate
Forme en V-ing
I could be stagnating you could be stagnating she could be stagnating we could be stagnating you could be stagnating they could be stagnating
Perfect
I could have stagnated you could have stagnated she could have stagnated we could have stagnated you could have stagnated they could have stagnated
Perfect en V-ing
I could have been stagnating you could have been stagnating she could have been stagnating we could have been stagnating you could have been stagnating they could have been stagnating
Négation
Forme simple
I couldn't stagnate you couldn't stagnate she couldn't stagnate we couldn't stagnate you couldn't stagnate they couldn't stagnate
Forme en V-ing
I couldn't be stagnating you couldn't be stagnating she couldn't be stagnating we couldn't be stagnating you couldn't be stagnating they couldn't be stagnating
Perfect
I couldn't have stagnated you couldn't have stagnated she couldn't have stagnated we couldn't have stagnated you couldn't have stagnated they couldn't have stagnated
Perfect en V-ing
I couldn't have been stagnating you couldn't have been stagnating she couldn't have been stagnating we couldn't have been stagnating you couldn't have been stagnating they couldn't have been stagnating
Forme interrogative
Forme simple
could I stagnate? could you stagnate? could she stagnate? could we stagnate? could you stagnate? could they stagnate?
Forme en V-ing
could I be stagnating? could you be stagnating? could she be stagnating? could we be stagnating? could you be stagnating? could they be stagnating?
Perfect
could I have stagnated? could you have stagnated? could she have stagnated? could we have stagnated? could you have stagnated? could they have stagnated?
Perfect en V-ing
could I have been stagnating? could you have been stagnating? could she have been stagnating? could we have been stagnating? could you have been stagnating? could they have been stagnating?
Forme interro-négative
Forme simple
couldn't I stagnate? couldn't you stagnate? couldn't she stagnate? couldn't we stagnate? couldn't you stagnate? couldn't they stagnate?
Forme en V-ing
couldn't I be stagnating? couldn't you be stagnating? couldn't she be stagnating? couldn't we be stagnating? couldn't you be stagnating? couldn't they be stagnating?
Perfect
couldn't I have stagnated? couldn't you have stagnated? couldn't she have stagnated? couldn't we have stagnated? couldn't you have stagnated? couldn't they have stagnated?
Perfect en V-ing
couldn't I have been stagnating? couldn't you have been stagnating? couldn't she have been stagnating? couldn't we have been stagnating? couldn't you have been stagnating? couldn't they have been stagnating?