How are you today?
She is a good and encouraging teacher and every time one of her students gets a good mark, she says:
Keep up the good work!!!
Today we are going to learn about the phrasal verb to keep up which means to continue doing something at the same rate, speed or way.
But, what about the phrasal verb to keep on?
To keep on also means to continue doing something but not necessarily in that same way, rate or speed, for example:
He kept on raising his hand to answer to the teacher’s questions.
Remember that to keep is an irregular verb: keep – kept – kept
So, if your teacher thinks you are making good progress learning English he or she will say:
Keep up the good work!
But if he or she only wants you to continue with the exercises, your teacher will say:
Please, keep on working.
And you know what? I think you are doing a pretty good job learning English so I will say:
Keep it up!