“常常”和“往往”一般都认为是近义词,但实际上“常常”是频率副词,“往往”是概率副词。“常常”同状语以及否定成分共现很少受到限制,而“往往”只能出现在状语和否定成分的前面。“常常”是客观副词,在小句中充当状语;“往往”是主观副词,并不充当状语,而是对小句命题做出评价。“往往”和命题情态动词相似,结构位置都处于分层v P的最上面。 “Often ” and “Often ” are generally considered synonymous, but in fact “often ” is a frequency adverb, “often ” is a probability adverb. “Often ” The coexistence of the adverbial and negative elements is seldom restricted, and “often ” can only appear in front of the adverbial and negative elements. “Often ” is an objective adverb, which acts as an adverbial in a small clause; “often ” is a subjective adverb rather than an adverbial phrase, but an evaluation of the clause proposition. “Often ” is similar to the propositional modal verb, and the structural positions are all at the top of the stratified vp.