英语高手帮忙，这个句子有没有错误？

past改为passed
as是连词，后面接句子，past是形容词，名词或介词，与time连用不能构成句子。
passed是动词，此处是不及物动词，与time连用，time passed当然是句子

最好时态变一下 As time passes, the language has changed a lot.

As time passes, the language has changed a lot.

As time passes by, the language is changing.

past应为passed,两者读音相同,极其容易混淆

past应为pasting或going