Conditional sentence গঠনের সহজ নিয়ম জেনে নিন

Conditional Sentence
Conditional sentence এর প্রকারভেদঃ Conditional sentence চার প্রকার।
নিচে এগুলোর গঠন প্রনালী উদাহরণসহ বর্ণনা করা হলো।

1. Zero conditional: যদি চিরন্তন সত্য হয় তবে if + present indefinite, present indefinite 
a) If water freezes, it turns into ice.
b) If sun rises, darkness disappears.
c) Darkness disappears if sun rises

Conditional sentence গঠনের সহজ নিয়ম

2. First conditional: if + present indefinite, sub + will/can/may/must/will be able to + V1
Sub + will/can/may/must/will be able to + V1 + if + present indefinite
a) If I find his address, I will write him.
b) we will make the negotiation if he wants.
c) If you work hard, you will be able to pass.

3. Second conditional: if + past indefinite, subject + would/could/might + V1
→ Sub + would/could/might + V1 + if + past indefinite
a) If I found his address, I would write him.
b) If you came, I would go.
c) If I had money, I would help the poor.

4. Third conditional: if + past perfect, Sub + could/ would/ might + have + V3
→ Sub + could/ would/ might + have + V3 + if + past perfect
a) If he had come, I would have helped him.
b) If the man had found my address, he would have written me.
c) You could have passed if you had worked hard.

কখনো কখনো third conditional এ if ব্যবহৃত হয় না। সেক্ষেত্রে had sentence এর শুরুতে ব্যবহৃত হয়। যেমন:-
a) had I read the book, I would have known many unknown things.
b) had we taken the decision, you could have fallen in distress.
c) had he come, I would have met him.

Note: conditional sentence এ be verb হিসাবে সর্বদা were ব্যবহৃত হয়।
d) If I was a king, I would help you. (incorrect) 
  If I were a king, I would help you. (correct)
e) If he was in the meeting, we would able to make the negotiation. (incorrect)
  If he were in the meeting, we would be able to make the negotiation. (correct)
Note: Conditional sentence এ connector হিসাবে in case, unless, provided that ইত্যাদি ব্যবহৃত হতে পারে।
a) Give him your telephone number in case he gets lost.
b) I will lend you money provided that you will return it.
c) Respect your parents in case they are very old.

তবে unless শব্দটি negative হওযার এর পর আর কোন negative word ব্যবহার করা যাবে না।

a) Unless he does not come, I will go there. (incorrect)
  Unless he comes, I will go there. (correct)
b) You will fail in the exam unless you don’t work hard. (incorrect)
  You will fail in the exam unless you work hard. (correct)

Your turn: difficulty level: fill in the blanks with correct form of verb
1. What would have happened if the bridge........ ? (break)
2. Maeen would never have taken the job if he........  the bank job course (do) 
3. He........  arrested if he had tried to leave the country (be)
4. This could have happened if I.......... to the place. (go) 
5. If I had known you were coming, I........  to the station.(go)
6. He will carry an umbrella in case it........  (rain)
7. If he.........hard, he could have passed in the exam.(work)
8. If he........  in time, we would meet him (come)l
9. If you heat ice, it........  (melt) 
10. If I had a typewriter, I........  myself. (type)
11. I would go if he........  (come) 
12. If I were you, I........  the situation more carefully. (handle)
13. I........  you, if I could. (help)
14. If a ruby is heated it........  its colour temporarily. (lose)
15. He......... To see us if he had been able to. (come)
16. If I had not intervened at the right moment, Jim........  (arrest)
17. I......... Your photograph if I had a camera. (take)
18. If I knew the answer, I......... You. (tell)
19. If he runs fast, he........  the prize. (win)
20. If I were a bird, I........  in the sky. (fly)
21. If he........ you, he would not do that.(known)
22. Had I known the truth,I........ you. (tell)
23. This could have worked if I.........been more far sighted. (have)
24. If my brother were here, he.........what to do. (know)
25. If we practiced speaking English, we........ better. (speak)

26. If he had the money, he........  a car.(buy)
27. Had I been rich, I.........the poor. (help)
28. Had I been In your station, I........ your offer. (accept)
29. If you........ one box, you would receive another one. (buy)
30. If he........ science before, he would not have found it so difficult to understand. (study)
31. Had he invited me, I........  to the party. (go)
32. If you wanted, (help)
33. what would have happened if the plane........ (crash)
34. Had I been in your shoes,........ the job.(accept)
35. Balaka.........on a trip to rajshahi if he had time.(go)
36. had I been rich, I........ him.(help)
37. Had I the wings of a bird, the sky.(fly)
38. If they had left already,
39. If your sister........, she would come. (invite)
40. If I had enough time, I.........for you.(wait)
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