<今日の進捗>
Book 9 - 33 (Did your parents have to nag you about taking out the rubbish,when you were a child?)

<オリジナル回答>
What’s the difference between being unable to do something and being incapable of doing something?
Being unable to do something means not having the ability to do something temporarily whereas being incapable of doing something means lacking the ability to do something permanently.