Чем отличается There is/There are ???

Как это сделать Look at the picture. Complete the senteces with : Is there, Are there, There (is n't), There are(n't). Answer the questions......... a carpet in the room?............................................... a window in the room?............................................... two tables in the room?............................................... three armchairs in the room?.............................................. a sofa in the room?......................................

no there is not / yes there is

2 is there a window in the room

3 are there 2 tables ,,,

are there 3 armchairs...

5 is there sofa,,,

there is указывает на один предмет.например there is an apple on the tablethere are указывает на множесто предметов. например-there are 6 chairs in the room