continue 的用法

请问 it is experiencing and will continue to experience difficulties 是正确的表达吗?
    it's a wrong sentence.         what is "it"?               "to experience difficulties"???

另外, 可不可以用进行时, 象:the economy is continuing to expand now.  in my opinion, it's a correct sentence; however, the sentence - "the economy will be continuing to expand" - is better..