=>

1. There is a car in my family.

2. My class has four windows.

3. How many pens do you have in your bag?

There is/There are ~ Have/Has

There is + N số ít

There are + N số nhiều đếm được

Have dùng với chủ ngữ số nhiều (I/you)

Has dùng với của ngữ số ít

`\color{green}{#Queen}`

`1.` There is a car in my family.

`-` There is `=` has (số ít)

`2.` My class has four windows.

`-`  There are `=` have

`-` Mà My class là số ít nên dùng has

`3.` How many pens do you have in your bag?

`-` $\text{How many + countable noun + do/ does/ did + S + have?}$

`=` $\text{How many + countable noun + are there?}$