'When' is a WH-word, which is mostly used in question form. In this lesson, we will learn everything about this word.

When

How to Use "When" in the English Grammar

'Where' is a WH-word. In this lesson, we will discuss the rules of using 'Where.'

'Who' is commonly known as a question word used to acquire information about a person. In this lesson, we will learn everything about this word.

'Whom' is a WH-word, which is mostly used in question form. In this lesson, we will learn everything about this word.

Nominal relative pronouns are also known as free relative pronouns are used to introduce a relative clause. Click here to learn!