Phrasal Verb: Keep Up

to continue at the same speed

Examples

• Keep up the good work.

Key rules

• Keep up means continue at the same speed or level
• It is separable when it means maintain: keep up the good work
• It takes "with" when you match another person: keep up with the class
• It is common in education and sport

Common mistakes

• I can't keep up the class → I can't keep up with the class