keep at

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verb (preposition)
(intr) to persevere with or persist in
(tr) to constrain (a person) to continue doing (a task)
Were you ready for a quiz on this topic? Well, here it is! See how well you can differentiate between the uses of "was" vs. "were" in this quiz.
Question 1 of 7
“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

How to use keep at in a sentence

Other Idioms and Phrases with keep at

keep at


Persevere or persist at doing something. For example, If you keep at your math, you'll soon master it. It is also put as keep at it, as in He kept at it all day and finally finished the report. [Early 1800s]


keep at someone. Nag, harass, or annoy someone, as in You have to keep at Carl if you want him to do the work, or He keeps at Millie all the time. Also see keep after.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.