1.
how many (cups/glasses/bowls)
question word used with the counter 杯/杯/杯 to ask about the quantity of drinks, or food served in bowls or cups
コーヒーは何杯飲みますか。
How many cups of coffee do you drink?
ご飯を何杯食べましたか。
How many bowls of rice did you eat?
ビールは何杯頼む?
How many beers should we order?
COUNTER QUESTION:
何杯 combines 何 (what/how many) with the counter 杯 for cupfuls/glassfuls/bowlfuls.
OBJECTS COUNTED WITH 杯:
- コーヒー/紅茶 - coffee/tea (cups)
- 水/ジュース - water/juice (glasses)
- ビール/酒 - beer/sake (glasses)
- ご飯 - rice (bowls)
- ラーメン/蕎麦 - ramen/soba (bowls)
COUNTING PATTERN:
- 一杯 - one cup/glass
- 二杯 - two cups/glasses
- 三杯 - three cups/glasses
- 何杯/何杯 - how many?
PRONUNCIATION NOTE:
The counter follows rendaku rules: はい → ばい/ぱい after certain numbers. Both なんばい and なんぱい are acceptable.