we are happy to be working是什么意思

现在分词完成式1.we are happy to have been working with you.2.we are We are happy to we are very happy to be back at We are hapPy (be) With we are happy to be together to be together 是不是动词不定式.为什么是用be used to working是什么意思?used to be working We will be very happy if we get to the happiness 是什么意思? 英语：We are very happy to be with each other.这句话中的to we should always be happy 是什么意思? We are happy sister yo 是什么意思? Ok,I want you to be happy when we are together,and when you we hope ____ happy while you are in America A.you to be B.yo