Pouvez-vous m’aider SVP il faut utiliser could/couldn’t et Had to il me semble merci

Normalement c’est :

a. had to work hard / couldn’t relax

b. Had to (devoir) ou Could (pouvoir)go to school / had to obey their master

c. Could (pouvoir) ou Had to (devoir) escape / could live freely

d. Had to use the Underground… to escape / had to disguise themselves

e. Could sing at night / could

Il me semble que c’est ça après à toi de voir could/couldn’t = pouvoir / ne pas pouvoir
Had to : devoir (faire qlq chose..)