My dear SSC Examinee Right form of verbs is the heart of English grammar. A man can live without one hand, leg, eye etc. but English language can’t run without right form of verbs. It is a vital part of English grammar.
Rule 18 : As if, as though, wish ইত্যাদি থাকলে subject-এর পরে be verb-এর পরিবর্তে were বসে।
যেমন :He behaves as if he (be) a leader.
Ans : He behaves as if he were a leader.
I wish I (be) a millionaire
Ans : I wish I were a millionaire.
Rule 19 : As if, as though দ্বারা দুটি clause যুক্ত থাকলে প্রথম clause টি Present tense হলে পরবর্তী clause টি Past indefinite হয়। প্রথম clause টি Past tense হলে পরের clause টি Past perfect tense হয়।
যেমন:
He behaves as if he (buy) the car.
Ans : He behaves as if he bought the car.
He spoke as though he (do) a great task.
Ans : He spoke as though he had done a great task.
Rule 20 : While যুক্ত sentence-এ while-এর পরে verb থাকলে verb-এর সঙ্গে ing যোগ হয়। আবার while-এর পরে subject থাকলে Past continuous tense হয়।
যেমন :
While (take) dinner, he received the phone.
Ans : While taking dinner, he received the phone.
While I (play) in the field, I saw him coming.
Ans : While I was playing in the field, I saw him coming.
Rule 21 : Lest দ্বারা দুটি clause যুক্ত থাকলে lest-এর পরবর্তী subject-এর সঙ্গে auxiliary verb should/might বসে।
যেমন:
Read attentively lest you (fail) in the examination.
Ans : Read attentively lest you should fail in the examination.
Walk fast lest you (be) late in your class.
Ans : Walk fast lest you might be late in your class.
Rule 22 : Would that দ্বারা sentence শুরু হলে subject-এর পরে could বসে এবং মূল verb-এর Present form হয়।