She has been meaning to clean out her closet since January.

has 是助动词 have 的第三人称单数现在时形式，用于构成完成时态。 been 是 be 动词的过去分词形式，与 have 连用构成完成时态。 meaning 是动词 mean 的现在分词形式，mean 在这里表示"打算、有意"的意思。 has been meaning 构成现在完成进行时，表示从过去某个时间开始一直持续到现在的意图或打算。