Question

We (know) each other for last ten years.​

Answer 1

Answer:For a period of time” or “since some point in time”. “Ten years ago” is a suitable point in time. Correct sentences are:—

“We have known each other for ten years.”

“We have known each other since ten years ago.”

The tense has to be present perfect; simple present is incorrect.

Explanation:

Answer 2

Answer:

We knew each other for last ten years.

Explanation:

Because it is past sentence so we use past form.

Hope it's helpful....

Mark as brainliest plzz....