Free grammar and vocabulary worksheet generators

Sentence Structure Worksheets Generator

Practise sentence types and structure, fix fragments and run-ons, and combine sentences – printable with answers.

This free sentence structure worksheet generator makes printable practice for sentence types, subjects and predicates, fragments, run-ons, and sentence combining, with answer keys. It runs in your web browser, so there is nothing to install and no sign-up. Choose a level, add up to six exercises, and the sheet appears in a preview that updates as you change settings. The same tool makes sentence types worksheets, simple and compound sentences worksheets, and correcting sentences worksheets. The practice sentences were written for this site and checked by hand, and the level you pick controls which sentences and words appear, so the work suits grades 3 to 8 and ESL learners.

How to make a sentence worksheet

  1. Choose a level: Easy (grades 3–4 or ESL beginner), Medium (grades 5–6 or ESL intermediate), or Hard (grades 7–8 or ESL upper-intermediate).
  2. Open the exercise type menu and pick a type for the first exercise. The Simple, compound, complex exercise always uses Medium or Hard sentences.
  3. Set the number of questions, from 3 to 30. Fewer appear when an exercise has fewer items at that level.
  4. Select Add another exercise to add more blocks, up to six in total.
  5. Type a worksheet title and choose US Letter or A4 paper.
  6. Turn on Name and date line, Number the questions, or Word bank for exercises that have one.
  7. Check the preview on the right. It changes as soon as you change a setting. Click New worksheet if you want different sentences with the same settings.
  8. Select Print worksheet. To save a PDF, choose Save as PDF in the print window, set the scale to 100 %, and turn off headers and footers.

For separate copies that stop students copying from each other, use Different versions (1–10). Each version has its own questions and its own answer key. Copy link saves an address that opens the exact same worksheet, which is useful for reprinting later or sending it to a colleague.

What are the four types of sentences?

The four types of sentences are declarative, interrogative, imperative, and exclamatory. Each one is named by its purpose, and each has a typical end mark.

A declarative sentence makes a statement and ends with a period, such as “Nobody knows how deep the lake is.” An interrogative sentence asks a question and ends with a question mark, such as “Did anyone see where I put my keys?” An imperative sentence gives a command or request, such as “Take two steps forward and stop.” An exclamatory sentence shows strong feeling and ends with an exclamation point, such as “What a clever idea you had!”

The purpose decides the type, not the length. A short sentence can be a command, and a long one can be a statement. Read a sentence aloud and ask yourself whether it tells, asks, orders, or feels something strongly. That question is the quickest way to sort it.

What is the difference between simple, compound and complex sentences?

Simple, compound, and complex sentences differ in how many clauses they contain. An independent clause has a subject and a verb and can stand alone as a sentence. A dependent clause also has a subject and a verb, but it cannot stand alone.

A simple sentence has one independent clause. It can still have two subjects or two verbs: “My brother and I built a tree house.” “We washed the car and cleaned the garage.”

A compound sentence joins two independent clauses with a comma and and, but, or, or so, or with a semicolon: “The sun set, and the stars appeared.”

A complex sentence has one independent clause and one dependent clause: “We stayed inside because it was raining.” The words “because it was raining” cannot stand alone, so the sentence depends on its main clause.

A compound-complex sentence, which appears at Hard level, contains two independent clauses and at least one dependent clause.

To sort a sentence, count the independent clauses first. One means simple or complex. Two means compound or compound-complex. Then look for a dependent clause to tell simple from complex.

Frequently asked questions

What are subjects and predicates?

The complete subject is who or what the sentence is about, with all its describing words, such as “The old man with the cane.” The simple subject is its main noun or pronoun, which is “man.” The complete predicate is the verb and everything after it, such as “crossed the street slowly” in “The old man with the cane crossed the street slowly.”

What is a fragment or a run-on?

A fragment is an incomplete thought, such as “Although she was tired.” A run-on joins two sentences with no punctuation or only a comma, such as “Tom lost his keys, he looked everywhere.” To fix a run-on, split it into two sentences or join the clauses with a conjunction.

Do the worksheets come with answers?

Yes. Turn on Add the answer key when printing to get the key on its own page after the sheet. To print only the key, select Print answer key.

Can students check their answers online?

Yes. Select Practice online to turn the sheet into an on-screen exercise. Students tap a choice, type an answer, or tap words, then select Check answers to see each item marked right or wrong, the correct answers, and a score. Try again resets the exercise. Free-writing items are not scored.

Can this tool make correcting sentences worksheets?

Yes. In the Fix the sentence exercise, each item needs a capital letter, an end mark and one grammar correction. For example, “the boys is playing soccer” becomes “The boys are playing soccer.”