Rule 1.
if+present,+future :- if cluseযদি present tense (indifinite)হয় তবে পরের অংশ ,future indifinite হবে ।
if+sub+simple present tense, +sub+will.can/may/must+verb word.
example: if a ruby is heated, it will temporarily lose its colour.
-->তবে যদি বাক্যটি চিরন্তনসত্য কিংবা বৈজ্ঞানিক সত্য প্রকাশ করে তবে sentence দুটি clauseই present indifinite tense হবে ।
example:-
water boils if, you heat it to 100 deg centigrate.
Examples :--
-->we will wail if yot want to go /if you want to go, we will there.
-->if you lisent to question carefully, you will answer them easily.
-->if it rains, we will play ludo
-->if services are icreased ,taxes will probably go up
