Write down the complex form of the following simple sentences:

A simple sentence contains only one independent clause (subject + finite verb). A complex sentence, on the other hand, consists of one independent clause and at least one dependent (subordinate) clause, connected by a subordinating conjunction.

In the given simple sentence, "Seeing the police" is a participle phrase. Participle phrases often act as adverbs or adjectives, providing additional information without forming a full clause. To transform this simple sentence into a complex one, the participle phrase needs to be expanded into a dependent clause.

The steps for this transformation are:

    
• Identify the implied subject and verb within the participle phrase: In "Seeing the police," the thief is the one who saw the police. So, the implied clause is "the thief saw the police."
    
• Choose an appropriate subordinating conjunction that reflects the relationship (usually time or cause) between the actions. For "seeing" leading to "running away," a temporal conjunction like 'When', 'As', or 'As soon as' is suitable.
    
• Form the dependent clause using the identified subject, verb, and conjunction: "When the thief saw the police."
    
• Combine this dependent clause with the original main clause: "When the thief saw the police, he ran away."

This structure now clearly shows an independent clause ("he ran away") and a dependent adverbial clause ("When the thief saw the police") joined by the subordinating conjunction "When".

A simple sentence contains one independent clause, meaning it has one subject and one finite verb, expressing a single complete thought. For example, "Ahbab is a good student" has one subject ("Ahbab") and one finite verb ("is").

A complex sentence consists of one independent clause and at least one dependent (subordinate) clause. The dependent clause cannot stand alone as a complete sentence and relies on the independent clause for its meaning. It is typically introduced by a subordinating conjunction (e.g., because, although, when, while, if) or a relative pronoun (e.g., who, whom, whose, which, that).

To transform the simple sentence "Ahbab is a good student" into a complex sentence, we need to expand a part of the simple sentence into a dependent clause. In this case, the adjective "good" describing "student" can be expanded into an adjective (or relative) clause. By changing "good student" to "student who is good," we introduce the dependent clause "who is good," which modifies the noun "student." The relative pronoun "who" links this dependent clause to the independent clause "Ahbab is a student," thus forming a complex sentence.

I know what his name is.

A simple sentence consists of a single independent clause, meaning it has one subject and one finite verb expressing a complete thought. In the sentence "I know his name," "I" is the subject, "know" is the verb, and "his name" is a noun phrase functioning as the object.

To convert a simple sentence into a complex sentence, we need to introduce at least one dependent (subordinate) clause while retaining one independent clause. This often involves expanding a word or phrase into a clause.

In this specific transformation, the noun phrase "his name" is replaced by a noun clause. A noun clause acts as a noun within the sentence and can be introduced by subordinating conjunctions such as 'what', 'who', 'that', 'where', 'when', 'why', 'or 'whether'. By changing "his name" to "what his name is," we create a noun clause that functions as the object of the verb "know," resulting in the complex sentence: "I know what his name is." Here, "I know" is the independent clause, and "what his name is" is the dependent noun clause.

This transformation converts a simple sentence into a complex sentence. A simple sentence has one independent clause, while a complex sentence has one independent clause and one or more dependent clauses.

In the original simple sentence, "He called me at the time of eating," "at the time of eating" is an adverbial phrase modifying the verb "called."

To make it complex, we replace the adverbial phrase with an adverbial clause of time. The conjunction "when" introduces the dependent clause "when he was eating," which functions as an adverbial clause indicating the time of the action "called."

Key points for transformation:

    
• Simple Sentence: Contains a single independent clause (subject + finite verb). E.g., He called me at the time of eating.
    
• Complex Sentence: Contains one independent clause and at least one dependent (subordinate) clause. The dependent clause is connected to the independent clause by a subordinating conjunction (e.g., when, while, because, although, if, that, who, which). E.g., He called me when he was eating. Here, "He called me" is the independent clause, and "when he was eating" is the dependent clause.

The original sentence, "She is too weak to move," is a simple sentence that uses the 'too...to' construction to express a negative outcome or impossibility due to an excessive quality. To transform this into a complex sentence, we typically use the 'so...that' conjunction.

    
• Replace 'too' with 'so'.
    
• Place the adjective (e.g., weak, old, busy) after 'so'.
    
• Introduce a 'that' clause, which will contain a subject (referring back to the main subject) and a modal verb expressing inability (e.g., 'cannot' for present tense, 'could not' for past tense), followed by the base form of the verb from the original infinitive phrase.

In this specific example, 'She is too weak to move', 'is' is in the present tense, so 'cannot' is used in the 'that' clause. Thus, the complex form becomes "She is so weak that she cannot move."