Tham khảo tài liệu 'the grammar of the english verb phrase part 45', ngoại ngữ, ngữ pháp tiếng anh phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | IX. Current relevance and present result 301 IX. Current relevance and present result The present perfect tense implies current relevance the bygone situation is considered as being relevant at t0. Current relevance is equivalent to concern with NOW which is what distinguishes the present perfect from the preterite which implies concern with THEN . However current relevance does not necessarily mean that the speaker is concerned with a present result of the bygone situation. The present perfect and current relevance According to one linguistic tradition the most important or even only semantic difference between the present perfect and the past tense is that the former expresses current relevance i. e. the bygone situation is still relevant at t0 while the past tense does not. As noted in and this claim then usually leads to the further claim that the present perfect is not a tense but an aspect current relevance is said to be equivalent to perfect aspect . In the claim that there is no such thing as a present perfect tense has been rejected. However we do subscribe to the view that the present perfect tense implies current relevance. In our opinion current relevance is equivalent to concern with NOW which is what distinguishes the present perfect from the preterite which implies concern with THEN . On the other hand we distance ourselves from those linguists who narrow current relevance down to resultativeness i. e. who claim that what distinguishes the present perfect from the preterite is that only the former represents the bygone situation as having yielded a result which is still holding at t0. It will be shown in that except in the hot news use of the perfect the idea of a present resultant state is only an implicature of the present perfect which arises in some contexts but not in others. On some W-interpretations such as the up-to-now readings the implicature does not arise at all. The present perfect and the
