Use-: If---------not or Unless
A)When If-sentence is negative- e.g. (Use- Unless) 1) If he does not run fast, he will miss the train. Ans- Unless he runs fast, he will miss the train. 2) If she did not catch the ball, she would be punished. Ans- Unless she caught the ball, she would be punished. 3) If you are lucky, you will not fail. Ans- Unless you are lucky, you will fail. 4) If we are not fair to any one, the world cannot be fair to us. Ans- Unless we are fair to any one, the world cannot be fair to us. 5) If you are brave, you will not fear. Ans- Unless you are brave, you will fear. 6) You are likely to be punished, if you don’t express regret. Ans- Unless you express regret, you are likely to be punished. 7) If they do not work hard, they will not win. Ans- Unless they work hard, they will not win. Rules :- 1) Write ‘Unless’ in place of ‘If’. 2) Remove ‘not’ from ‘If-sentence’. 3) If there are two ‘not’, remove only on...