In the sentence, 'I can't believe you', I is a pronoun standing in place of a noun and is, therefore, the subject of the sentence.
The word "I" is a pronoun in the sentence. Pronouns are words that take the place of a noun to avoid repetition.
"When" is an adverb when it begins a sentence.
In a sentence, the word "action" can function as a noun.
He, she, and it are pronouns, which are a part of speech that replace nouns to avoid repetition in a sentence.
In the part of speech, the main verb is the word that expresses the action or state of being in a sentence. It is the key element that carries the meaning of the sentence.
There are no sentences that have no parts of speech. Every word in a sentence is classified as a part of speech, such as nouns, verbs, adjectives, etc.
speech is the basic foundation of English . without the part of speech sentence cant be formed
I believe it would be an adjective.
I believe that fishing is used as a noun in there
In a sentence, the word "action" can function as a noun.
it depends what word it is it could be any part of speech depending on the sentence
"When" is an adverb when it begins a sentence.
To believe is a verb.
All subjects are part of speech for they are all nouns.
you
a sentence is a part of speech
Pronoun
Noun