英语五大基本句型：

一、主语+系动词+表语的句型；

二、主语+谓语（不及物动词）的句型；

三、主语+谓语（及物动词）+宾语的句型；

四、主语+谓语+间接宾语+直接宾语的句型；

五、主语+谓语动词+宾语+补语的句型。

1. Subject + Verb: This is the most basic sentence structure in English, where the subject performs an action or state of being.

Example: She sings beautifully.

2. Subject + Verb + Object: In this sentence structure, the subject performs an action on an object.

Example: He ate a sandwich for lunch.

3. Subject + Verb + Indirect Object + Direct Object: This sentence structure involves the subject performing an action on a direct object and giving something to an indirect object.

Example: She gave her friend a birthday present.

4. Subject + Linking Verb + Predicate Adjective/Noun: In this sentence structure, the linking verb connects the subject to a predicate adjective or noun that describes or renames it.

Example: The flowers are beautiful.

5. There is/are/was/were (Existential Sentence): This type of sentence emphasizes existence and location of people, things or ideas in relation to each other using "there" as a dummy subject followed by a form of "to be".

Example: There are many books on the shelf.