English Tutor Nick P Conjunctions (2) While You Are at It

In this video, we will cover the meaning of this phrase, allude to its origin and give examples of its use.

[rajvirsingh]

very informative, you're doing God's work.

[hunterhuiet]

Can you please make a video explaining until/when hell freezes over?

[bano]

Tutor, I have watched a movie in which a woman don't want to talk on a phone while her aunt was telling her this is your call. But her aunt told the person who was at the phone "she is indisposed, she can't attend the call."
My question is that aunt could have said she is ill, why the word indisposed is used . And what is the difference between I'll, sick, indisposed . though ill, sick are easy for me to understand. Best regards.