Express the following using must as advice: Visit the dentist.
You must visit the dentist, or your teeth will fall out.
What is the function of might: “She might be a great dancer, but she can’t sing!”
Concession
what is the function of could: “Jim hasn’t been to school for three days; he could have been abducted by aliens!”
Past possibility
What is the function of might: “You shouldn’t use that chainsaw; you might have cut your leg off!”
Past possibility which didn’t happen
What is the function of can’t: “It can’t be healthy to eat four hamburgers a day.”
Deduction
What is the function of can: “Why are all your clothes on the floor? You can be a real slob sometimes, you know!”
Criticism
