Question

how to use articles?
how to use preposition?
dont even dare to ans if u dont know correct ans​

Answer 1

Articles

That's a very good question. Fortunately, the answer is quite simple. It's about listening to the words you're using. The rule for indefinite article usage is as follows:

Use a before nouns (or adjectives) that start with a consonant sound.

Use an before nouns (or adjectives) that start with a vowel sound.

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Preposition

On :

On (refers a surface of something)- I kept the dishes on the dining table.

On (specifies days and dates)- I will come on Monday.  

Radha was born on 15th August.

On (refers TV or other devices)- She is on the phone.

My favorite movie will be on TV now.

On (refers the parts of the body) — I keep wearing my wedding ring on my finger.

On (to refer a state)- The products available in the store are on sale.

At :

At (to indicate a place)- There are a good number of people at the park.

At (to refer an email address)- Please mail in detail @ (at) [email protected]

At (to refer a time) — Meet me at 5 p.m. tomorrow.

At (indicate one’s activity)-John laughed at my acting in the play.

In :

In (to indicate a location)- I am in my friend’s place now.

In (used while doing something) — The tagline should be catchy in marketing a product.

In (to indicate opinion, belief, feeling, etc.)- I believe in hardworking.

In (specify day, month, season, year) — I prefer to do Maths in the morning.

The new academic session will commence in March.  

In (to indicate color, shape and size) — This dress comes in four sizes.

To :

To (to indicate the direction, place)- The friends went to the restaurant.

I am heading to my college.

To (to indicate relationship) — Do not respond to the annoying persons.

Your answer is important to me.

To (to indicate a limit) — The old newspapers were piled up to the roof.

To (to refer a period) — I am here from 10 to 5.

Of :

Of (to indicate relating to, belonging to) — I always dreamed of being famous.  

Of (to indicate reference) — This is a picture of my last birthday.

Of (to specify the number or an amount) — A good number of people understand Hindi.

For :

For (to indicate the reason or because of) — I am really happy for you.

For (to indicate the duration or time) — I attended the session for one year only.

For (specify the use of something) — She is preparing for her final exam.

Hope helps