Whether vs. If

What Is Their Main Difference?

The main difference between 'whether' and 'if' is that 'if' is more common than 'whether.'

Parts of Speech

'Whether' and 'if' are conjunctions. They are classified as subordinating conjunctions. They connect an independent clause with a dependent clause.

Example

He called the restaurant to see whether they are open for reservation.

He called the restaurant to see if they are open for reservation.

Meaning

'Whether' and 'if' are used to introduce conditions. They express the happening of an event that relies on something else to happen.

Example

I'm not sure whether they will attend the party or not.

I'm not sure if they will attend the party or not.

Formality

'Whether' is more formal than 'if' in spoken English. While they are equally formal in written English.

Frequency

'Whether' is less common than 'if' in both written and spoken English.

Tip!

As mentioned earlier, 'whether' and 'if' are interchangeable. However, it is advised to use 'if' when the sentence is conditional and use 'whether' to express alternatives.

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What Is Their Main Difference?
Parts of Speech
Meaning
Formality
Frequency

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