MODALS

                                                                                                                                                                                   Types of Modals

• must
• have to
• could
• should

MUST

• we use must to express that it is necessary to do something.

Example:

• We must keep our nails clean.
• You must follow the rules of the game.
• You must take care you sister.
• I must finish my homework before tomorrow.
• Siti must complete the form if she wants to enter the competition.

HAVE TO

• We use have to or has to express necessity or obligation. when referring to the past, we use past tense had to.

Example:

• I have to wake up early tomorrow
• She had to see a doctor yesterday
• You have to open the box if you want to know what is in it.
• I have to work really hard if I want to success.
• Jim has to take care of his mother at the hospital.

COULD

• We use could to express permission and possibility.

Example :

• Could I borrow your pen please?
• We could catch the next train if we hurry.
• Amin could lift the heavy box.
• Could you ask Nani to come and see me this morning?
• With a little bit of encouragement I believe he could do it.

SHOULD

• We use should to show what is right.

Example:

• Shakir should keep the promises that he made yesterday.
• You should tell your mom about the accident.
• We should listen to our parent's advice.
• You should study more often.
• The shopkeeper should be polite to all his customers.