have been to,lot,a lot of...以上单词词性是什么?没有像n.是名词，v.是动词的词性吗？

Over time l have been changed a lot. Describe a place that you have been to that has a lot of water. I HAVE BEEN TO THE ZOO A LOT OF TIMES英译中 A lot of people have been invited to the charity show.(改为主动） to make our city more beautifulA a lot of trees have been planted B it's necessary to plant a lot of trees C a lot of trees need planting D we have planted a lot of trees l have been to Japan t______? l have been a friend with Li Ming since we went to primary school .里面这个have been 是什么语态? l have a lot of things to do的同义句I______always______. l have been give you a promise Yes.l have l ve learned a lot that way. i have been learning English a lot对不? 英语翻译我的翻译A lot things which are not supposed to do have been done; a lot of words which are not supposed to say have been said; it’d better not feel too embarrassed with it. l have learned ______ that way a.lot of b.a lot c.a lot of l really think l should have been invited to the meeting.l am very unhappy___l was not.A whyB that l suer miss to you a lot. 请翻译There have been a lot of times where I was determined to just take the next step There have been a lot of times where I was determined to just take the next step 请英译汉There have been a lot of times where I was determined to just take the next step