COUNTABLE AND UNCOUNTABLE NOUNS

                             
A noun can be countable and uncountable.

Countable

I eat a banana every day.

L like bananas.

Countable nouns (or count nouns) are thigs we can count They have both singular and plural forms (e.g. cat/cats; woman/women; country/countries). In the singular, they can be preceded  by a or an. Most nouns come into this category.

You can use A or AN  with singular countable nouns.

a beach                                   a student                                 an umbrella

You can use SOME and ANY with plural countable noun.

We sang some songs.

Did you buy any apples?

We use MANY and FEW with plural countable noun.

We didn't take many photographs.
We have a few jobs to do.

Uncountable

I eat rice every day.
I like rice.

Rice is an uncountable noun.
Uncountable nouns are things we cannot count. 
An uncountable noun has only one form (rice).

We cannot usually use A / AN with uncountable nouns. We do not say "a sand" or "a music". But you can often use A...OF

Example:   a bowl of rice                                a piece of music

We can use SOME and ANY with uncountable nouns.

We listened to some music.
Did you buy any apple juice?

We use MUCH and LITTLE with uncountable nouns

Example:  We didn't do much shopping.
                 I have a little work to do.

ACTIVITIES
https://learnenglishkids.britishcouncil.org/en/grammar-practice/nouns-countable-and-uncountable.
Retrieved from English Grammar in Use

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PRESENT CONTINUOUS

They are singing

They are playing soccer

AFFIRMATIVE                                                                NEGATIVE

                I am working                                                                   I am not working             

                        You are working                                                             You are not working    

                         She is working                                                                She is not working        

                         He is working                                                                  He is not working         

                         We are working                                                              We are not working  

                        They are working                                                           They are not working

                                                                    INTERROGATIVE

                                            Are you working?    Yes, I am          /       No, I am not

                                           Is he working?          Yes, he is          /       No, he is not

                                           Is she working?        Yes, she is        /        No, she is not

                                           Are we working?      Yes, we are      /        No, we are not

                                           Are they working?    Yes, they are   /         No, they are not

I am doing something: I am in the middle of doing something. I have started doing it and I have not finished yet.

Often the action is happening at the time of speaking:

I am tired. I am going to bed now

Please don´t make so much noise. I´m working.

But the action is not necessarily happening at the time of speaking. For example:

I´m reading an interesting book at the moment. I will lend it you when I have finished it.

PRONOUN         +           VERB TO BE     +           VERB/ING

We use the present continuous when we talk about things happening in a period around now (for example, today / this week / this evening etc.)

                            You are working hard today 

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