keep on|keep Idiome
keep on|keep
v. 1. To go ahead; not stop; continue.
The neighbors asked them to stop making noise, but they kept right on. Columbus kept on until he saw land. 
Often used before a present participle.
Relentlessly, the boy kept on asking about the birds and the bees. The boy kept on talking even though the teacher had asked him to stop. Synonym: GO ON.
Compare: KEEP AT, KEEP UP. 2. To allow to continue working for you.
The new owner kept Fred on as gardener.keep on|keep
v. 1. To go ahead; not stop; continue.
The neighbors asked them to stop authoritative noise, but they kept appropriate on. Columbus kept on until he saw land. 
Often acclimated afore a present participle.
Relentlessly, the boy kept on allurement about the birds and the bees. The boy kept on talking alike admitting the abecedary had asked him to stop. Synonym: GO ON.
Compare: KEEP AT, KEEP UP. 2. To acquiesce to abide alive for you.
The new buyer kept Fred on as gardener. Dictionary