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Grammar Reference

infinitive
We use the full infinitive (to + base form of the verb):
• to express purpose.
 She went to the supermarket to buy some orange juice.
• after certain verbs: want, would like, would love, decide, forget, learn, teach, need, plan, promise, try, etc.
 I decided to buy a house near the sea.
We use the bare infinitive (base form of verb without to):
• after modal verbs (can, could, will, would, should, may, might, must).
 Will you stop talking?  You must visit the doctor today.
• after the verbs let and make.
 She makes me study all the time.  Mum, let me go to the party, please!

Note:
We can use the verb help with a bare or full infinitive.
© MM Publications
 I always help my brother do his homework.
 I always help my brother to do his homework.

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