over years和over the years有什么不同？有第一种的说法吗？

over years和over the years有什么不同？有第一种的说法吗？

over years多年来 常与现在完成时连用，属于一段时间。over weeks/months类似
Over years Berlin has conducted fruitful cooperation with Beijing in such fields as culture,education, urban construction, environmental protection and tourism.
柏林多年来同北京在文化、教育、城建、环保、旅游等领域开展了卓有成效的合作。
over the years这/那些年（时态不一定是现在完成时）
Thank you for everything over the years, Grandma.
奶奶，谢谢您这些年来所做的一切。
Over the years she had tried to block out that part of her life.
多年来她努力想把她生命中的那一段经历从记忆中抹去.
Over the years I have worked with many of these challenging personality types.
在这几年里，我与很多具有这种挑战型人格的开发人员共事过。

over the years通常连用什么时态 over the years 的意思是“这些年来”“经过这么多年之后”“最近几年”，通常表示的是从现在算起的过去几年，因此通常与现在完成时连用。如： My tastes have changed enormously over the years. 几年来我的爱好有了很大改变。 She’s brought us so much happiness over the years. 这些年来，她给我们带来了不少的幸福。 Life was difficult then but things have got better and better over the years. 那时生活很艰苦，但情况已一年比一年好了。有时连用其他时态。如： I recall his many politenesses over the years. 我还记得他多年来很多有礼貌的事情。句中的over the years不是状语，而是修饰politenesses的定语。追问那over years呢？