Use 'of course' to show you are 100% sure about what you're saying.

Certainty Expression

Say 'of course' to reassure someone that their request or question is reasonable.

Reassuring Response

'Of course' can emphasize strong agreement or support for someone else's idea or suggestion.

Using 'of course' makes giving permission or agreeing seem polite and supportive.

'Of course' suggests that what happened is typical or unsurprising, often with a sense of inevitability.

The phrase can be used sarcastically to imply the opposite, usually when an outcome was not as expected.

'Of course' can be a casual and friendly response to requests, indicating that access or permission is easily given.

Use 'of course' to show your willingness to help or participate, making others feel welcomed.