The difference between 'it' and 'they' may seem obvious but there are similar uses that make it a bit trickier. These two words are very similar, they are both possessive words, but there is a big ...

An object is a noun, noun phrase or pronoun that is governed by a verb or apreposition, which means it comes straight after the verb and shows what the verbis acting upon. Don’t worry, it’s simpler ...

An essential relative clause provides necessary, defining information about the noun. On the other hand, non‐ essential relative clauses provide additional, non‐necessary information about the noun.