You should buy three apples.

question form –How many apples you should buy?

Is this correct? Or should it be:

How many apples should you buy?

Also, think about this one, if you buy three apples, which one is the correct question form:

How many apples do you buy?

or:

How many apples you buy?

**Answer**

The first question is easy; use:

How many apples should you buy?

In place of *should*, you could also use *would, could, did, will*, or even *might*, depending on what you were trying to say.

In the second question, you can say:

How many apples do you buy?

However, by itself, I’d interpret that to mean:

How many apples do you buy

on a regular basis?

I might fit that into a conversation like this one:

I go to the orchard every Saturday, and buy apples.

Really? How many apples do you buy?

However, if someone told me something different, I would ask my question in a different way:

I will go to the orchard on Saturday, and buy apples.

Really? How many appleswillyou buy?

**Attribution***Source : Link , Question Author : Mohammad Reza Rezwani , Answer Author : J.R.*