Learn English grammar. ❌I prefer to pay by cash. ✅I prefer to pay in cash. ❌I must to call him immediately. ✅I must call him immediately. ❌I congratulate you for your success. ✅I congratulate you on your success. ❌I wish I won’t have to work tomorrow. ✅I wish I didn’t have to work tomorrow. ❌Usually I wake up at 6 o’clock A.M. ✅I usually wake up at 6 A.M. ❌You speak English good. ✅You speak English well. ❌Do you like a glass of juice. ✅Would you like a glass of juice. ❌She sang sweet. ✅She sang sweetly. ❌I am good in English. ✅I am good at English. ❌She is afraid from dogs. ✅She is afraid of dogs. ❌I will call you on next Monday. ✅I will call you next Monday. ❌We discussed about the project. ✅We discussed the project. ❌He depends in his parents. ✅He depends on his parents. Happy learning!!