Need Excel Macro to compare Values of Two column based on Combo box selection value in Userform1

Dear All,

Am having a user form1 and have combo box and button in it

Am selecting a value "Feb" from Combo box, then i have some columns having data's below "jan" and "feb" header

I need a macro that should check after i select Feb from combo box
{

If (get values under jan and return 'true' if values present else 'false') &&
(get values for Feb and return 'true if present else 'false')

}

True or false i need based on which i need to update one column at the end with this value.

Kindly help ! . thank you