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