Private Sub CommandButton1_Click()
duplicateCoount = 2 ' Количество дубликатов
i = 1
lastRow = 1
Do While Sheets("Sheet1").Cells(i, 1) <> ""
Sheets("Sheet1").Rows(i).Copy
j = 1
Do While j <= duplicateCoount
Sheets("duplicates").Rows(lastRow).PasteSpecial xlPasteValues
lastRow = lastRow + 1
j = j + 1
Loop
i = i + 1
Loop
End Sub