NASB 1995
"Therefore be on the alert, remembering that night and day for a period of three years I did not cease to admonish each one with tears.

American Standard Version
Wherefore watch ye, remembering that by the space of three years I ceased not to admonish every one night and day with tears.

Berean Study Bible
Therefore be alert and remember that for three years I never stopped warning each of you night and day with tears.

Douay-Rheims Bible
Therefore watch, keeping in memory, that for three years I ceased not, with tears to admonish every one of you night and day.

English Revised Version
Wherefore watch ye, remembering that by the space of three years I ceased not to admonish every one night and day with tears.

King James Bible
Therefore watch, and remember, that by the space of three years I ceased not to warn every one night and day with tears.

World English Bible
Therefore watch, remembering that for a period of three years I didn't cease to admonish everyone night and day with tears.

Young's Literal Translation
'Therefore, watch, remembering that three years, night and day, I did not cease with tears warning each one;

Acts 20:31 Additional Translations ...