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