1. Next time you should come here early. Or, another way to say it is: Next time, please arrive early. Or: Next time, you should come early. 2. You do not go swimming by yourself is correct, but an American would probably say: Don't go swimming by yourself or You can't go swimming by yourself. 3. Let's talk about this question. 4. The box is too heavy; the child can not move it. Or: The box is too heavy for the child to move. 5. Linda spends one and a half hours traveling to work by bus every day. Or: It takes Linda one and a half hours to get to work on the bus each day.

1. Next time you should come here early. 2. You do not go swimming by yourself. 3. Let's talk about this question. 4. The box is too heavy, the child cannot move it. 5. Linda goes to work by bus for one and a half hour every day.