How do you say how much in cantonese?

There are a few ways to say "how much" in Cantonese, depending on the context:

General:

* 幾多 (gei1 do1): This is the most common and general way to ask "how much".

* 幾錢 (gei1 cin2): This specifically asks "how much money".

* 幾多個 (gei1 do1 go3): This specifically asks "how many" for countable items.

Specific:

* 呢樣幾多錢 (ni1 joeng6 gei1 do1 cin2): "How much is this?"

* 呢啲幾多錢 (ni1 di1 gei1 do1 cin2): "How much are these?"

* 呢個幾多錢 (ni1 go3 gei1 do1 cin2): "How much is this one?"

Examples:

* 呢個蛋糕幾多錢? (ni1 go3 dong1 gou1 gei1 do1 cin2?) - "How much is this cake?"

* 呢啲蘋果幾多錢? (ni1 di1 ping2 guo2 gei1 do1 cin2?) - "How much are these apples?"

* 你食咗幾多飯? (nei5 sik1 zo2 gei1 do1 faan6?) - "How much rice did you eat?"

Note:

* The tone marks are included above to help with pronunciation.

* "幾 (gei1)" is often shortened to "幾 (gei2)" in casual speech.

The best way to choose the right phrase depends on the context and what you're asking about.