till（up to ）now 的用法及造句是?

网友回答

反正你还见这个单词就必须用现在完成时.
同义词替换啊,小伙子.
还有so far ,hitherto 等
======以下答案可供参考======
供参考答案1:
这是一种发生于过去延续到现在的段时间。通常用于现在完成时态或部分完成仍在进行时态。
We have been friends till now.
He has been asleep up tp now.
She has kept the house till now.
He has been saying till now.
She has been crying up to now.