Topic: 另开一贴，cute99(简单)看过来： "It's my first time to do/ doing"? Best Answer: It is far more usual and more natural to say "This is the first time I have done this".| Yahoo Answers @美国华人论坛:美国枫下论坛 The Rolia Forum of USA

工作学习 / 外语学习 / 另开一贴，cute99(简单)看过来： "It's my first time to do/ doing"? Best Answer: It is far more usual and more natural to say "This is the first time I have done this".| Yahoo Answers -softerface(探长); 2015-3-22 (#9333812@0)

It is my first time (I am/will be) doing... -linearvib(vib); 2015-3-22 (#9333836@0)
to do和doing这两个都对啊，只是意义不同而已。 -happysun2013(随风四处漂); 2015-3-22 (#9333876@0)
探长偷换观念嘞。。。This is the first time I am doing it. / I have done it. 和 It is my first time doing it. 不同的哈。。。The first time 至少需要两个定语才能be specific， 1. whose & 2. of what .......其实这样也行： This is the first time of mine doing it. ....但用个简单的从句更 usual...

My first time, 只需要一个定语， of what. 既然只需要一个定语，那么用现在分词作定语短语（doing something）就能完成功能。。。
还是那句话：口语讲究简略。能用形容词作定语，不要用定语短语。。。能用短语，不要用从句。。。 -cute99(简单); 2015-3-22 {318} (#9334128@0)

雅虎问答的，那是专家级的native speaker的最佳答案，居然被您给否定啦。 -softerface(探长); 2015-3-23 (#9337103@0)

没否定专家，专家奏是专家。。。但探长同学两次问的问题都不一样。问题变了，就不能照搬答案。。。探长接着去问。。。　This time don't forget to make your question clear : This is " my" first time I have done this / or This is my first time doing this.... -cute99(简单); 2015-3-23 {138} (#9337141@0)

@USA