英语翻译Maybe,i think,I think maybe i'm falling in love with you

I think maybe tingting fall in love with you I think i'm falling in love with this city.为什么falling要加ing? I think I am falling in love I think I'm in love with I think i'm fall in love with you I think I'm in love with you.啥意思? I think I am falling in love with you.What's to be done? maybe i love you 英语翻译Sister,I think I fell in love with you, Maybe I really fall in love with I think I'm in love 和 I think I'm in love with you 那个语法是对的? I will use I think the best way to love you,maybe you do not