有already一定要用完成时态吗?

有already一定要用完成时态吗? not until一定要用完成时态么 some times一定要用完成时态吗不是完成时态,用可延续性动词行吗 有for many years 用什么时态?一定要用完成进行时吗？只是完成时不对吗？ already 一定要用完成式搭配吗?比如下面这个句子Mr.Bean ' funny image are already known by people.需要将are already known 改成 has been already known already 一定要用完成式搭配吗?比如下面这个句子Mr.Bean ' funny image are already known by people.需要将are already known 改成 has been already known 哪些时间状语用完成时态 as you will already know 有没有这样的说法?教科书上的,有这样的说法吗?感觉will already时态矛盾 it was yesterday that the accident took place这里可不可以用完成时态,即it was yesterday that the accident had taken place?另外,强调句型里that后面的部分时态有什么要求或注意的吗? For so many years 后面要用完成时态么?还是什么时态都可以? 有关hear of的用法hear of可以用完成时态吗?后面可不可以跟宾语从句? already前用什么时态 already,yet 用于什么时态 already是什么时态的关键词 already 一定用完成时吗?其他怎么用 英语翻译WHERE HAVE YOU BEEN THESE DAYS?WHERE HAVE YOU BEEN TO THESE DAYS?WHERE DID YOU GO THESE DAYS?这3个翻译哪句比较正确?还有请问可以用完成时态吗?你们有什么好建议? i ___the book twice when i was in the bookstore.A.have read B.was reading C.had read D.read答案是D.可是有twice不应该用完成时态吗.帮忙解答一下吧.多谢. be afraid that 新概念中的写法新概念第一册107课有句：i'm afraid that i havn't got a larger dress问题是对话中为何要用完成时态,有什么说法吗.