WHINE
1) My father was a brave man who never whined about anything.
2) If you carry on whining like that, I won't take you anywhere!
3) Stop (that) whining!

RIP
1) Why are you ripping it?
2) What a pity! I´ve just ripped my favourite skirt.

PITY
1) Pity it´s going to rain.
2) It would be a pity if I didn´t pass the exam.
3) What a pity!