Mastering Form, Structure, and Sense Questions on the Digital SAT


Learn the English rules tested by these digital SAT grammar questions, complete with detailed examples.



"Form, Structure, and Sense" questions on the digital SAT challenges students to master the art of editing, ensuring texts comply with established norms like subject-verb concord and uniform verb tense. These questions require a sophisticated grasp of the English language rules.

The question pushes students to deconstruct sentences into parts of speech, reconcile subjects and verbs, and differentiate between different verb conjugations. There's a lot of ground covered here, so let's start with an example.

Form, Structure and Sense questions are phrased as "Which choice completes the text so that it conforms to the conventions of Standard English?", but don't get them confused with Boundaries questions, which test mostly punctuations.


Example Question:


The Hubble Telescope, launched into low Earth orbit in 1990, is a significant part of human space exploration history. Making critical observations of distant galaxies, ______ transformed our understanding of the universe.

Which choice completes the text so that it conforms to the conventions of Standard English?



How to Solve Form, Structure, and Sense Questions


  1. 1. Understand the Grammar Rule Being Tested

    Start by reading the question and focus on the phrase before and after the blank. This example question tests your knowledge of sentence structure, particularly the correct placement of modifiers. A common error in sentence construction is the dangling modifier, where the descriptive phrase doesn't clearly or logically connect to the word it's supposed to be modifying.

    Mini Question.

    Which of the following errors occurs when a descriptive phrase does not clearly refer to the word it modifies?

    1. A) Run-on sentence
    2. B) Dangling modifier
    3. C) Sentence fragment




  2. 2. Identify the Modifier

    The next step is to identify the modifying phrase, which is usually at the beginning of the sentence.

    Mini Question

    Which part of the sentence is the modifier that needs a correct subject to follow?

    1. A) The Hubble Telescope
    2. B) launched into low Earth orbit in 1990
    3. C) Making critical observations of distant galaxies




  3. 3. Locate What Is Being Modified

    Next, understand what that modifier is describing. The important thing to remember here is that the modifier is providing additional information about a specific noun in the sentence.

    Mini Question

    In the original sentence, what should the phrase "Making critical observations of distant galaxies" modify?

    1. A) observations
    2. B) galaxies
    3. C) the Hubble Telescope




  4. 4. Check for Direct Connection

    The modifying phrase should directly lead into the noun it's describing, without any unnecessary interruption. This ensures clarity, as the reader understands exactly what's being described without having to guess or reread the sentence.


  5. 5. Review the Choices

    Go through each choice and consider if it positions the modifier directly before the appropriate noun. Eliminate choices where there's a disconnect (these are your dangling modifiers).

    Mini Question

    Which option maintains the clearest connection between the modifier and its intended subject?

    1. A) "the Hubble Telescope, with its advanced instruments,"
    2. B) "with its advanced instruments, the Hubble Telescope"
    3. C) "having advanced instruments, the Hubble Telescope"





Grammar Rules


Here are 7 common grammar rules tested on form, structure, and sense questions.



Common Mistakes


These are the top 3 mistakes students run into with this question type.


Now that you've mastered this question type, it's time to test your skills

Take a Free Digital SAT Practice Test