Identify the simple and complete subject, simple and complete predicate, and any complements, prepositional phrase, and objects of prepositions in the following sentence:

scientist usually use special computers for difficult problems

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The simple and complete subject is Scientists.

The simple predicate is use.

What do you identify the rest of the parts of this sentence? We'll be glad to check your answer.

My fingers got ahead of my brain.

HOW do you identify the rest of the parts of this sentence?

I would identify the rest of the sentence as follows:

complements: special and difficult

prepositional phrase: for difficult problems

objects of preposition: difficult

are these correct? Thank you

complements: special and difficult

Both of these words are adjectives. The only complement is computers because it tells WHAT scientists use.

prepositional phrase: for difficult problems
Correct

objects of preposition: difficult
The object of the preposition is the noun or pronoun that follows the preposition. In this sentence the object of the preposition is problems.

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To identify the simple and complete subject, simple and complete predicate, and any complements, prepositional phrase, and objects of prepositions in the sentence "Scientists usually use special computers for difficult problems," we can break it down as follows:

Simple subject: The simple subject is the noun or pronoun that the sentence is about. In this case, the simple subject is "scientists."

Complete subject: The complete subject includes the simple subject along with any words modifying it. In this case, the complete subject is "scientists usually."

Simple predicate: The simple predicate is the verb or verb phrase that indicates the action or state of being performed by the subject. In this case, the simple predicate is "use."

Complete predicate: The complete predicate includes the simple predicate along with any words or phrases that complete or modify it. In this case, the complete predicate is "use special computers for difficult problems."

Complements: There are no complements in this sentence. A complement is a word or phrase that completes the meaning of a subject, object, or predicate. For example, in the sentence "He is a teacher," "teacher" is a complement that completes the meaning of the subject "he."

Prepositional phrase: "For difficult problems" is a prepositional phrase in this sentence. It starts with the preposition "for" and describes the purpose or reason for using the special computers.

Object of the preposition: The object of the preposition is the noun or pronoun that follows a preposition and completes its meaning. In this case, the object of the preposition is "problems." It is the noun that the preposition "for" relates to and describes what the special computers are used for.