不曾离开英文版

never left from you

have never been away

I never have left

have been here，have not been left .时态要对称啊。

第一第二人称 I/You have never gone/left第三人称 He/She has never gone/left希望我的回答对你有帮助

I have been, never left【希望帮助到你，若有疑问，可以追问~~~祝你学习进步，更上一层楼！(*^__^*)】

I was here all the time, and have never left.答案由【英语精英团】与【英语牛人圑】提供

I am here all the time and never left even once。i stayed there all the time and had never left even once。（过去时）Up to now, I have been staying here since then and never left even once。

Once visited, never forgotten!

I have never been away.