What do you take to school?

1. I take the number 2 bus.
2. I take number 2 bus.
3. I take the bus number 2.
4. I take bus number 2.
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Which one is grammatical and commonly sed?

All are correct, but 1 and 4 are the most commonly phrased.

Out of the options provided, the most grammatically correct and commonly used sentence is: "I take bus number 2." This sentence follows the pattern of "I take [noun] [number]," which is a common way to express the mode of transportation you use. However, it's worth noting that the phrasing may vary depending on the region or personal preference.