Build the sentence

Auxiliary Ellipsis: Build the Contrast

Arrange the tiles to build a sentence. Leave out the extra tile, and preserve the auxiliary that replaces the repeated words.

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Question 1

Build the sentence: _____

Options: doesn't., The printer works, but the scanners don't.

Question 2

Build the sentence: _____

Options: Her neighbours complained, but she didn't., don't.

Question 3

Build the sentence: _____

Options: aren't., The musicians are rehearsing; their conductor isn't.

Question 4

Build the sentence: _____

Options: The samples were labelled; the container wasn't., weren't.

Question 5

Build the sentence: _____

Options: hasn't., Our guide has eaten, but the tourists haven't.

Question 6

Build the sentence: _____

Options: The tutor can attend, but her students can't., doesn't.

Question 7

Build the sentence: _____

Options: don't., Your answer is correct, but mine isn't.

Question 8

Build the sentence: _____

Options: The engine has been running; the lights haven't been., being.

Question 9

Build the sentence: _____

Options: having., We didn't read the warning, although we should have.

Question 10

Build the sentence: _____

Options: The visitors aren't ready, but I am., I'm.

Practice Auxiliary Ellipsis: Build the Contrast with this interactive sentence-building exercise of 10 questions. Tap the words into the correct order to build each sentence, then submit to check your answers and get detailed feedback on every sentence.

Practicing grammar in real sentences — rather than memorising rules in isolation — is one of the most effective ways to make a structure stick. You can retry as many times as you like to build accuracy and confidence using Auxiliary Ellipsis: Build the Contrast in everyday English.

Looking for more practice? See all exercises for this lesson.