Share Grammar & Vocabulary for First Unit 18 - infinitives
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The doctor said I should TO DO/DO more exercise.
The doctor said I should DO more exercise.
Modal verbs are followed by ...
the infinitive without to
If the students want to go on the school trip, they must TO DO/DO their homework.
If the students want to go on the school trip, they must DO their homework.
Make sure you let the dog GO/TO GO outside so he can go to the toilet.
Make sure you let the dog GO outside so he can go to the toilet.
His mum made him TO HELP/HELP his sister with her homework.
His mum made him HELP his sister with her homework.
