"两只老虎正在打架."翻译成英文 Mike和John正在公园里放风筝."翻译成英文,改为否定句,改为一般疑问句

两只老虎正在打架tow tigers are fighting with each other
否定句:tow tigers aren't fighting with each other
一般疑问句:are tow tigers fighting with each other
Mike和John正在公园里放风筝Mike and John are flying kites in the park
否定句:Mike and John aren't flying kites in the park
一般疑问句are Mike and John flying kites in the park?