N Apostrophe T Tom Lehrer

(Scene: Outside the cave of a very grouchy hermit (H). A very sweet child (C) coming along)

(C): Isn't it a lovely day?
(H): No, it isn't!
(C): Could you come outside and play?
(H): No, I couldn't!
(C): Did you ever take a hike?
(H): No, I didn't!
(C): How'd you like to ride my bike?
(H): Frankly, I wouldn't!

(C): Isn't, couldn't, didn't, wouldn't
Is that all you can say?
(H): Isn't, couldn't, didn't, wouldn't - Yes, now go away
The sweetest sound to me
It stands for "not"
I like it a lot
It's spelled "n"-apostrophe-"t"

(C): Have you ever tried to smile?
(H): No, I haven't!
(C): Won't you try it for a while?
(H): No, I won't!
(C): Are there games to play in there?
(H): No, there aren't!
(C): Then why d'you like to stay in there?
(H): Frankly, I don't!