Giving Advice

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What are Modal Verbs?

Modal verbs are special verbs which behave very differently from normal verbs. Here are some important differences:

1. Modal verbs do not take "-s" in the third person.

Examples:

• He can  speak Chinese.
• She should  be here by 9:00.

2. You use "not" to make modal verbs negative, even in Simple Present and Simple Past.

Examples:

• He should not be late.
• They might not come to the party.

3. Many modal verbs cannot be used in the past tenses or the future tenses.

Examples:

• He will can go with us. Not Correct
• She musted study very hard. Not Correct

Common Modal Verbs

Can Could May Might Must

Ought to Shall Should  Would

Another expression: Had better
Taken from: http://www.englishpage.com/modals/modalintro.html

Summary

Exercise