auxiliary verbs

• Auxiliary verbs


  Often referred to as helping verbs
• Types of auxiliary verbs

  • Primary
  • Modal
• Primary auxiliary verbs


  • Be
  • Do
  • Have
• Be


  • Used to form the continuous tense
  • Used to form the passive voice
• Do


  • Used to express emphasis
  • Used to form questions
  • Used to express negative statements
• Have


  • Used to form perfect tenses
• Using primary auxiliary verbs

  1. Has she seen this movie before

  2. I do not agree with you

  3. They are coming with us

  4. The criminal was caught yesterday

  5. I do enjoy a good conversation
• Modal auxiliary verbs


  • Don't change form
  • Help the main verb by expressing likelihood, ability, permission, intention, requests, or necessity
• Modal auxiliary verbs


  • It might rain over the weekend
  • She can run faster than me
  • You may swim in the pool
  • I shall leave the party early
  • Would you look after my dog
  • He must remember their anniversary
• Using modal auxiliary verbs

  1. We should study for our final exam

  2. They might give us a discount if we ask

  3. I have lots of money so I can afford it

  4. May I have a drink please

  5. The class will bring food tomorrow for the party