The subject typically refers to the main topic or focus of a discussion, text, or study. It can also denote the person or thing performing an action in a sentence. In different contexts, such as grammar, philosophy, or education, the meaning of "subject" can vary, but it fundamentally relates to what is being addressed or examined.
If there is no subject, it is not a sentence.
A subject pronoun can be the subject of a sentence or the subject of a clause.
subject
what subject is
Yes, the subject pronouns function as the subject of a sentence or a clause.The subject pronouns are: I, you, we, he, she, it, and who.Examples:I do like that movie. (subject of the sentence)The movie that I like is on TV tonight. (subject of the relative clause)You may like the movie too. (subject of the sentence)You will also like the actor who is in it. (subject of the relative clause)
The subject of the sentence is "you"
unknown subject of an investigationunknown subject
is the word his a subject
The subject, is what you are talking about, if you have no subject, you are speaking about nothing.
GradPoint - each subject is discussed in turn
The subject tells who or what the sentence is about.
What is the subject of this sentence? She was the subject of an investigation.