All sentence types and sub types in English

 English sentences are categorized into two primary systems: by function (the job the sentence does) and by structure (how the sentence is built).

Here is the complete breakdown of sentence types and their sub-types.

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1. Sentences by Function (Purpose)

This classification focuses on why you are speaking or writing.

A. Declarative (Statements)

These relay information, facts, or opinions.

• Affirmative: Positive statements. (Example: "The sky is blue.")

• Negative: Statements that deny or use "not." (Example: "It is not raining.")

B. Interrogative (Questions)

These seek information and end with a question mark.

• Yes/No Questions: Can be answered with a simple yes or no. (Example: "Are you hungry?")

• Wh- Questions: Start with Who, What, Where, When, Why, or How. (Example: "Where is the library?")

• Choice (Alternative) Questions: Offer two or more options. (Example: "Do you want tea or coffee?")

• Tag Questions: A statement with a mini-question added at the end. (Example: "It’s cold, isn’t it?")

C. Imperative (Commands/Requests)

These give orders, instructions, or make requests. The subject "You" is usually implied.

• Direct Command: Strong order. (Example: "Sit down.")

• Request/Entreaty: Politer form using "Please." (Example: "Please pass the salt.")

• Prohibition: Telling someone not to do something. (Example: "Do not walk on the grass.")

D. Exclamatory (Emotions)

These express strong feelings like surprise, anger, or joy.

• Standard Exclamatory: Starts with "What" or "How." (Example: "What a beautiful day!" / "How fast he runs!")

• Declarative-Exclamatory: A statement spoken with high emotion. (Example: "I can't believe we won!")

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2. Sentences by Structure

This classification focuses on the number and type of clauses (Subject + Verb) used.

Structure	Sub-Type/Definition	Example
Simple	One independent clause.	The cat slept.
Compound	Two independent clauses joined by a coordinator (FANBOYS) or semicolon.	The cat slept, and the dog barked.
Complex	One independent clause + one or more dependent clauses.	The cat slept because it was tired.
Compound-Complex	At least two independent clauses + at least one dependent clause.	The cat slept because it was tired, but the dog stayed awake.

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3. Extra: Sentences by Voice and Condition

Advanced grammar adds a few more ways to categorize how we frame thoughts:

Active vs. Passive Voice

• Active: The subject performs the action. (Example: "The chef cooked the meal.")

• Passive: The subject receives the action. (Example: "The meal was cooked by the chef.")

Conditional Sentences (The "If" Types)

• Zero Conditional: General truths. (Example: "If you heat ice, it melts.")

• First Conditional: Real possibilities. (Example: "If it rains, I will stay home.")

• Second Conditional: Unreal/Imaginary situations. (Example: "If I won the lottery, I would travel.")

• Third Conditional: Past regrets/Hypotheticals. (Example: "If I had studied, I would have passed.")

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Summary Table for Quick Reference

Category	Primary Types
By Function	Declarative, Interrogative, Imperative, Exclamatory
By Structure	Simple, Compound, Complex, Compound-Complex
By Voice	Active, Passive
By Logic	Conditionals (0, 1, 2, 3)

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