Explanation

Usage of along and along with

Along = In line with a length or direction

For example: We drove along the highway.

Along = As a companion

For example: Her brother came along to the movies.

I brought my camera along.

Along with = Together with someone

Along with = کسی کے ہمراہ

My father worked along with his friends.

Explanation

Usage of Against

Against = opposed to

Against = کے خلاف

He is against match fixing.

Against = in contract with

Do not lean against the wall.

Explanation

Sometimes, Prepositions are inserted where they are not required.

Where have you been to? (Incorrect Sentence)

Where have you been? (Correct & Complete Sentence)

Where have you been means آپ کہاں تھے

Explanation

The word averse takes preposition “To”.

Averse to something means کسی چیز کے خلاف ہونا

Explanation

Off is a preposition here.

Here off means at a distance

Keep the car off the flower beds

Explanation

Sometimes, Prepositions are inserted where they are not required.

After having finished my work, I went home. (Incorrect Sentence)

Having finished my work, I went home. (Complete & Correct Sentence)

Explanation

Laugh is an intransitive verb.

Laugh at someone means کسی پر ہنسنا یا مذاق اڑانا 

Laugh is generally followed by at

We should not laugh at the poor means ہمیں غریبوں پر نہیں ہنسنا چایئے  

Explanation

Last month shows past tense.

Second form (threw) is used in simple sentence of Past Indefinite Tense,

Explanation

We use preposition since for point of time.

We use preposition for for period of time. (Numerals)

He has been swimming for one hour. 

Explanation

Active Voice: Why did you not agree to my proposal?

Passive Voice: Why was my proposal not agreed to by you?

Past Indefinite tense

Active Voice= Subject +  Second Form of Verb + Object.

Passive Voice = Object + was/were + third of verb + by + subject.