Javascript 两个Google表单将指向同一个电子表格文件，需要将数据复制到第三张表单

我是新手，我希望你们中的一位天才能帮助我。我有两种形式，一种是西班牙语，一种是英语（同样的领域问题）。它们都将指向同一个电子表格文件（单独的表格），但我需要将数据合并到第三个表格（称为合并）。我尝试了以下方法：

function onFormSubmit(e){ 
  var responses = SpreadsheetApp.getActiveSpreadsheet().getSheetByName("Spanish");
  var combined =  SpreadsheetApp.getActiveSpreadsheet().getSheetByName("Combined");
  var lastrow = responses.getLastRow();
  var col = responses.getLastColumn();
  var row = responses.getRange(lastrow, 1, 1, col).getValues();
  combined.appendRow(row[0]);
}
function onFormSubmit2(e){ 
  var responses = SpreadsheetApp.getActiveSpreadsheet().getSheetByName("English");
  var combined =  SpreadsheetApp.getActiveSpreadsheet().getSheetByName("Combined");
  var lastrow = responses.getLastRow();
  var col = responses.getLastColumn();
  var row = responses.getRange(lastrow, 1, 1, col).getValues();
  combined.appendRow(row[0]);
}

问题是，无论提交什么表单，它们都会同时使用两个数据库，所以我最终会得到重复的表单。然后我试着：

function OnFormSubmit {
  if(SpreadsheetApp.getActiveSpreadsheet().getSheetByName("Spanish"))return;
  var responses = SpreadsheetApp.getActiveSpreadsheet().getSheetByName("English");
  var combined =  SpreadsheetApp.getActiveSpreadsheet().getSheetByName("Combined");
  var lastrow = responses.getLastRow();
  var col = responses.getLastColumn();
  var row = responses.getRange(lastrow, 1, 1, col).getValues();
  combined.appendRow(row[0]);
  }
function OnFormSubmit2 {
  if(SpreadsheetApp.getActiveSpreadsheet().getSheetByName("English"))return;
  var responses = SpreadsheetApp.getActiveSpreadsheet().getSheetByName("Spanish");
  var combined =  SpreadsheetApp.getActiveSpreadsheet().getSheetByName("Combined");
  var lastrow = responses.getLastRow();
  var col = responses.getLastColumn();
  var row = responses.getRange(lastrow, 1, 1, col).getValues();
  combined.appendRow(row[0]);

  }

但只有一个有效。我迷路了

谢谢！ 萨沙