Rule 1: WH-Question ১০টি, As, Since,Because, Though, Although মোট ১৫টি
১ম Clause Present হলে ২য় Clause Present
১ম Clause Past হলে ২য় Clause Past
Though he is poor, he is honest
When I saw him, I called him.
Rule 2: If=যদি (Incase,Unless=যদি-না, Provided)
If + ১ম Clause Present Indefinite(Present form , ২য় Clause future indefinite(Shall/Will/Can/May/Must +Present form
If it rains, we shall not go.
If he wants, I shall help him.
If you play in the rain, you will catch cold.
Rule 3: If +১ম Clause Past Indefinite(Past Form) , ২য় Clause Subject+ would/could/might + verb (present form).
If he came, I would go.
If they wanted, we would help him.
If I had a typewriter, I would type the letters.
Rule 4: If + ১ম ClausePast Perfect (Had+V.P.P), ২য় Clause Subject+ would have/could have/might have + verb (past participle form).
If I had seen him, I could have told him the news.
If they had started earlier, they could have got the train.
If she had tried, she would have succeeded.
Rule 5: ১ম Clause Had + Subjet+ Past Participle Form , ২য় Clause Subject+ would have/could have/might have + verb (past participle form).
Had I seen him, I would have given him the news.
Had he wanted, they would have helped him.
Had I possessed a vast property, I would have established a college.
Rule 6:১ম Clause If + Subject + were, ২য় Clause Subject+ would + verb (present form).
If I were a king, I could help the poor.
If I were you, I would not do this.
Rule 7: Would that/ I wish + were + ……
I wish I were a king.
Would that he were alive today.
Rule-8: Relative pronoun - যেমন who, which, what, that, whose, whom ইত্যাদি কোন incomplete sentence এর শেষে থাকলে এদের Antecedent এর Number ও person অনুসারে পরবর্তী verb এর নির্ধারিত হয়ে থাকে। যেমনঃ
Incomplete: I know the boy who ——
Complete: I know the boy who has stood first.
Incomplete: I have a pet dog which —————
Complete: I have a pet dog which likes meat.
Rule 9: It is time (এখনই সময়/ এখনই উপযুক্ত সময়)+ to + verb (present form) + ……….
It is time to start the work.
It is time to leave the place.
Rule 10: It is time + subject + verb (past form) + ………
It is time we went home.
It is time they earned their livelihood.
Rule 11: It is time + for + personal object + to + verb (present form) + ……….
It is time for us to attack the enemy.
It is time for them to start the work.
Rule 12: Present Indefinite + as if/as though (যেন)+ past indefinite.
He tells the story as if he knew it.
He runs fast as though he were a mad man.
They donate money as if they were rich man.
Rule 13: Past Indefinite + as if/as though + past perfect.
Reyad told the story as if he had known it.
She proceeded as though I had not spoken.
Rule 14: Would you mind (দয়া অর্থে) + verb(ing) + …….?
Would you mind taking a cup of tea?
Would you mind opening the door?
Rule 15: ……so much/many + …. + that + 1st subject + can/cannot + …….
You have so much intelligence that you can get a job.
There are so many problems that I cannot solve them.
You have so much money that you can buy a ticket.
Rule 16: ……too + adjective + to + verb (present form).
The man is too old to work.
You are too short to touch the roof.
He is too dishonest to speak the truth.
Rule 17: ……too + adjective/adverb + for + personal object + to + verb (present form).
The load is too heavy for me to carry.
The problem was too hard for them to solve.
It is too interesting for us to overlook.
Rule 18:১ম Clause Present so + adjective/adverb + that + 1st subject + cannot + verb (present form).
Many farmers are so poor that they cannot cultivate their land.