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Rishabh went to his friend's house
(add a phrase)
Rishabh went to his friend's house without informing his parents.
Reply to the email at once
(add a clause)
It is difficult to be optimistic
(add a clause)
You are not allowed to go out
(add a phrase)
We finished cleaning up
(add a phrase)
(add a clause)
I completed the homework
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Answers
In language, a clause is a part of the sentence that contains a verb.[1] A typical clause consists of a subject and a predicate,[2] the latter typically a verb phrase, a verb with any objects and other modifiers. However, the subject is sometimes not said or explicit, often the case in null-subject languages if the subject is retrievable from context, but it sometimes also occurs in other languages such as English (as in imperative sentences and non-finite clauses).
A simple sentence usually consists of a single finite clause with a finite verb that is independent. More complex sentences may contain multiple clauses. Main clauses (matrix clauses, independent clauses) are those that can stand alone as a sentence. Subordinate clauses (embedded clauses, dependent clauses) are those that would be awkward or incomplete if they were alone.
In everyday speech, a phrase is any group of words, often carrying a special idiomatic meaning; in this sense it is synonymous with expression. In linguistic analysis, a phrase is a group of words (or possibly a single word) that functions as a constituent in the syntax of a sentence, a single unit within a grammatical hierarchy. A phrase typically appears within a clause, but it is possible also for a phrase to be a clause or to contain a clause within it. There are also types of phrases like noun phrase and prepositional phrase.