The best way to learn proper English is to read news report, and watch news on TV. Watching TV shows is a great way to learn casual English, slang words, understand culture reference and humor. If you have already watched these shows then you may recall the words used in the following dialogs.

I need to figure out
how to get the BUCKET...
The Big Bang Theory Season 4, Episode 6

A drop in the BUCKET compared to
what we aim to earn from the blue stuff.
Breaking Bad Season 5, Episode 13

SHELDON:
I know how to get the bucket.
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SHELDON:
I know how to get the bucket.
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SHELDON:
I know how to get the BUCKET.
The Big Bang Theory Season 4, Episode 6

A hagfish can produce enough mucus
to fill a BUCKET in a minute.
The Big Bang Theory Season 9, Episode 9

For frogs, it's just
a drop in the BUCKET.
The Big Bang Theory Season 12, Episode 17