Explanation

Unless aid arrives, thousands will starve.

Here starve means بھوک سے مرنا

This is a conditional sentence.

We use 'will' in second clause in such type of sentences. 

Explanation

This is a conditional sentence.

We use subject + past tense in first clause, subject + would + first form of verb in such type of sentences.

If I had money, I would help him. 

AGM 28.02.28

Explanation

The word "unless" is an adverb which means جب تک

Explanation

We use to for a direction.

To is a preposition here.

She went to the sea alone وہ اکیلے سمندر کی طرف چلی گئی

Explanation

We word complain is followed by to/about.

To & about are prepositions here.

Complain to someone کسی انسان سے شکایت کرنا

Complain about something کسی معاملے پر شکایت کرنا

The boy complained to me about his teacher.

Explanation

Put Up قیام کرنا

Put on پہننا

Put off ملتوی کرنا

Put out بھجانا

Put up with برداست کرنا

She put on a sweater and went out.  

Explanation

Put Up قیام کرنا

Put on پہننا

Put off ملتوی کرنا

Put out بھجانا

Put up with برداست کرنا

I refuse to put up with that conduct. 

Explanation

This is a conditional sentence.

If I have  money, I will buy it tomorrow means میرے پاس پیسہ ہوا تو کل یہ خریدوں گا

We use have to show a possession. 

Have: ملکیت کو ظاہر کرنےکیلئے استعمال ہوتا ہے

AGM  5.2.23

Explanation

Child is a singular noun.

Children is a plural noun.

We use plural verb (are) with plural noun (children.

Children are assigned homework.

Explanation

This sentence belongs to Conditional Sentence.

We use present indefinite tense in first clause in such type of conditional sentence.

If it rains, I will stay home.

If he comes, Hamza will help him.