If-not = unless & Unless = If-not If-not = unless examples 1) If you do not study, you will not pass . Ans : Unless you study, you will not pass . 2) If you world hard , you will succeed. Ans : Unless you world hard , you will not succeed. 3) If you do not behave, you will have to find another job. Ans : Unless you behave, you will have to find another job. Unless = If-not examples 1) Unless he meets me, I shall not help. Ans : If he does not meet me , I shall not help. 2) Unless you play , you will not improve . Ans : If you do not play , you will not improve . 3) Unless you speak truth , no one will respect you . Ans : If you do not speak truth , no one will respect you . 4) unless you are careful , they might prove danger . Ans : If you are not careful , they might prove danger . If-not = unless