structure advanced

2. • We can use modal verbs to show our level of certainty; the
modals of certainty are divide into two parts: certain and
uncertain
• Modal verbs can be used to express ideas about the past,
present, and future. The most definite degree of certainty
can be expressed with “will” and won’t, followed by must and
can’t/couldn’t, should and shouldn’t, may and may not, and
might/could and might not, which express the least definite
degree of certainty.

3. Present Time

5. Past Time

6. Future Time