Warm up: imparfait vs passé composé

To say "I slept for 11 hours", in French, would you use:

• imparfait

• passé composé

I slept for 11 hours:

• is an habitual action

• has a specific endpoint

• ongoing action

I slept for 11 hours

• J'ai dormi pendant 11 hours

• Je dormais pendant 11 hours

• Je suis dormi pendant 11 hours

To say in French "I was eating when he rang the door bell". You'd use ​ (a)   to say "I was eating". You'd use ​ (b)   to say "he rang the door bell".

• imparfait
• passé composé

I was eating is

when he rang the door bell

Groups:

(a) ongoing action

,

(b) specific start

,

(c) specific endpoint

• I was eating

• when he rang the door bell

• when he rang

I was eating

• Je mangeais

• J'ai mangé

when he rang the door bell

• quand il sonnait

• quand il est sonné

• quand il a sonné