Usage patterns
遠慮なく〈動詞〉てくださいplease feel free to do ~
If you have any questions, please feel free to ask.
遠慮なく言うto say something frankly, without holding back
She's the type who says exactly what she thinks, without holding back.
遠慮なく使うto use something freely, without hesitating to impose
Please feel free to use this computer.