Домашнее задание 10.05.2022

“Deduction” means using the information available to make a guess or draw a conclusion about the facts.

Depending on the information available, you might be more certain that your conclusion is true, or less certain that your conclusion is true – and we use different modal verbs to indicate the degree of certainty.

Let’s look at some examples.

Modal Verbs For Certainty

CERTAINTY ABOUT THE PRESENT

When making deductions about the present, we use must if we are sure something is true and can’t if we are sure that something is impossible.

“He must be a chef.”

For example, if you see this guy, you can say:

• He must be a chef. (we are very certain, because of his uniform and what he is doing)
• He can’t be a policeman. (we are very certain he is NOT a policeman)

Carla works every day from 9 AM to 5 PM. Right now it’s 10:30 AM, so…

• She must be at work.
• She can’t be at home.