by the end of this year 与什么时态连用?

问题描述:

by the end of this year 与什么时态连用?
by the end of last year又与什么时态连用?最好提供一两个例句

将来时
Chinese population will pass 13 billion by the end of this year到今年年底中国人口会超过13亿
by the end of last year则为过去完成时
I hade learned more than 5000 words by the en d of last year
到去年年底我已经学了有5000个单词了