RULE#3 => THERE + BE + NUMBERS OR QUANTITIES
|RULE#1||THERE + BE USED TO SAY THAT SOMETHING OR SOMEONE EXISTS.||There's a pub around the corner.
There are some girls waiting outside.
|RULE#2||IT IS USED FOR TIME EXPRESSIONS, TEMPERATURE, DISTANCE AND WEATHER.||It's very cold today.
It is six o'clock.
It's ten miles to the town.
|RULE#3||THERE + BE + NUMBERS OR QUANTITIES.||There is a lot of space.
There was very little rain last night.
There are many things to do.
|RULE#4||IT IS USED IN THE FOLLOWING EXPRESSIONS.||It looks like, it appears that, it seems that, it is said that.|
|RULE#5||IT IS USED TO GIVE AN OPINION FOLLOWED BY TO-INFINITIVE OR AN ING-VERB.||It's very nice to meet you.
It's great living in London.
It's good to talk.