Phrase
up to now
adverb
到目前为止；至今
Until now; as of now.
- 1.
Until now; as of now.
到目前为止。
到目前为止。；到目前为止
In use
Up to now, I have finished three chapters of the book.
She has been very busy with work up to now, but she is going on vacation next week.
Up to now, we have not received any reply from the company.
have/has + past participle + up to now
通常与现在完成时连用。
We have received no complaints up to now.
到目前为止，我们没有收到任何投诉。
have/has been + verb-ing + up to now
She has been working here up to now.
到目前为止，她一直在这里工作。
Up to now, + clause
置于句首时，常带逗号。
Up to now, everything has gone smoothly.
到目前为止，一切进展顺利。
Common mistakes
I didn't finish the work up to now.I haven't finished the work up to now.
“到目前为止”常与现在完成时连用，表示从过去持续到现在的状态或动作，而一般过去时表示过去的动作，与“up to now”不兼容。
From up to now, we have made progress.Up to now, we have made progress.
“up to now”本身已包含“从过去到现在”的含义，无需再加“from”，否则语义重复。
Connections
Dictionary facts from ECDICT, WIKTIONARY.