I could standardise you could standardise he could standardise we could standardise you could standardise they could standardise
Forme en V-ing
I could be standardising you could be standardising he could be standardising we could be standardising you could be standardising they could be standardising
Perfect
I could have standardised you could have standardised he could have standardised we could have standardised you could have standardised they could have standardised
Perfect en V-ing
I could have been standardising you could have been standardising he could have been standardising we could have been standardising you could have been standardising they could have been standardising
Négation
Forme simple
I could not standardise you could not standardise he could not standardise we could not standardise you could not standardise they could not standardise
Forme en V-ing
I could not be standardising you could not be standardising he could not be standardising we could not be standardising you could not be standardising they could not be standardising
Perfect
I could not have standardised you could not have standardised he could not have standardised we could not have standardised you could not have standardised they could not have standardised
Perfect en V-ing
I could not have been standardising you could not have been standardising he could not have been standardising we could not have been standardising you could not have been standardising they could not have been standardising
Forme interrogative
Forme simple
could I standardise? could you standardise? could he standardise? could we standardise? could you standardise? could they standardise?
Forme en V-ing
could I be standardising? could you be standardising? could he be standardising? could we be standardising? could you be standardising? could they be standardising?
Perfect
could I have standardised? could you have standardised? could he have standardised? could we have standardised? could you have standardised? could they have standardised?
Perfect en V-ing
could I have been standardising? could you have been standardising? could he have been standardising? could we have been standardising? could you have been standardising? could they have been standardising?
Forme interro-négative
Forme simple
could I not standardise? could you not standardise? could he not standardise? could we not standardise? could you not standardise? could they not standardise?
Forme en V-ing
could I not be standardising? could you not be standardising? could he not be standardising? could we not be standardising? could you not be standardising? could they not be standardising?
Perfect
could I not have standardised? could you not have standardised? could he not have standardised? could we not have standardised? could you not have standardised? could they not have standardised?
Perfect en V-ing
could I not have been standardising? could you not have been standardising? could he not have been standardising? could we not have been standardising? could you not have been standardising? could they not have been standardising?