A clear guide to the types of sentences in English: 4 by function (declarative, interrogative, imperative, exclamatory) and 3 by structure (simple, compound, complex), each with examples.

English sentences are grouped two ways. By function there are 4 types: declarative, interrogative, imperative, and exclamatory. By structure there are 3 main types: simple, compound, and complex (plus compound-complex). Each is shown below with examples.
There are two ways to count the types of sentences in English. By function (the job the sentence does) there are 4: declarative, interrogative, imperative, and exclamatory. By structure (how the clauses are built) there are 3 main ones: simple, compound, and complex, plus a fourth blend called compound-complex. This guide explains all of them with clear examples, then shows how they show up in MDCAT and ECAT English.
By function, the four types of sentences are declarative (makes a statement), interrogative (asks a question), imperative (gives a command or request), and exclamatory (shows strong feeling). The function tells you what the sentence is doing and which end mark it takes.
A declarative sentence states a fact or an idea. It ends with a full stop. This is the most common type in writing.
An interrogative sentence asks something. It ends with a question mark and often starts with a question word (what, where, why, how) or a helping verb (is, do, can).
An imperative sentence tells someone to do something. The subject 'you' is usually understood, not written. It ends with a full stop, or an exclamation mark if it is forceful.
An exclamatory sentence shows a sudden, strong emotion like surprise, joy, or anger. It ends with an exclamation mark.
By structure, the three main types of sentences are simple (one independent clause), compound (two or more independent clauses joined together), and complex (one independent clause plus at least one dependent clause). A fourth type, compound-complex, mixes the last two. The key idea is the clause: an independent clause can stand alone as a sentence, a dependent clause cannot.
A simple sentence has one independent clause: one subject and one verb that express a complete thought. It can still have extra words, but only one clause.
A compound sentence joins two or more independent clauses. You connect them with a coordinating conjunction (for, and, nor, but, or, yet, so, remembered as FANBOYS) or a semicolon.
A complex sentence has one independent clause and at least one dependent clause. The dependent clause usually starts with a subordinating conjunction (because, although, when, if, since, while) or a relative pronoun (who, which, that).
A compound-complex sentence has two or more independent clauses and at least one dependent clause. Example: 'I revised every night because the exam was close, and I passed easily.' You do not need to use these often, but recognising them helps in grammar questions.
Use this table as a fast reference for every type, what it does, and one example each.
| Type | Group | What it does | Example |
|---|---|---|---|
| Declarative | Function | Makes a statement | The exam is on Monday. |
| Interrogative | Function | Asks a question | When is the exam? |
| Imperative | Function | Gives a command or request | Read the syllabus first. |
| Exclamatory | Function | Shows strong feeling | What a tough paper that was! |
| Simple | Structure | One independent clause | I solved the MCQs. |
| Compound | Structure | Two independent clauses joined | I solved the MCQs, and I checked them. |
| Complex | Structure | One independent + one dependent clause | I checked the MCQs after I solved them. |
| Compound-complex | Structure | Two independent + a dependent clause | I solved the MCQs, and I checked them after the timer stopped. |
Entry-test English in Pakistan tests grammar and sentence correction, so knowing sentence types directly raises your marks. Many MDCAT and ECAT English MCQs ask you to spot a fault in clause joining (a run-on or comma splice), pick the right conjunction, or correct punctuation at the end of a sentence. If you can name the type and its rule, the answer becomes obvious.
For example, if a question shows two independent clauses joined by only a comma, you know it is a comma splice and needs a conjunction or full stop. The fastest way to lock this in is timed practice on real MCQs. You can practice MDCAT and ECAT English MCQs on Parhlai and see your weak grammar topics in your analytics.
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Academic Content Writer, Parhlai
Sana Malik writes Parhlai's study-skills, scholarships, and student-life guides, focused on helping Pakistani students study smarter and stress less.

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