PowerShell Validate Set Parameters.

Hello, I have to design a PowerShell script that uses ParameterSetNames in the function.

What I am trying to achieve is I have a script Invoke-Script -year $year -duration $duration -quarter $quarter -month $month

The choice in the duration part should only be Quarterly or Monthly using ValidateSet

But the next step is where I am stuck, I want if the user picks Quarterly then the line should execute without the month perimeter, and vice versa if the user selects monthly then only month needs to be inputted.