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