FUNCTIONS [10]

    

Expressing Necessity

Present

• I have to buy some more eggs for my famous cake.
• I have got to repair that old car of mine. (informal)
• I must see the doctor soon because I don't feel well.
• It is necessary that I take a taxi. I'm late.

Past

• I had to work extra hours to pay my bills.

Future

• I'll have to to borrow money.

Lack of necessity

Present

• I don't have to drive fast.
• I don't need to write the report myself. My secretary can do that for me.
• I needn't buy all these things.

Past

• I didn't have to tell him about my project.

Future

• I won't have to revise my lessons. I learn them by heart.