Basic qualities of the perfect forms

The Modern English perfect forms have been the subject of a lengthy discussion which has not so far brought about a definite result. The difficulties inherent in these forms are plain enough and may best be illustrated by the present perfect. This form contains the present of the verb have and is called present perfect, yet it denotes an action which no longer takes place, and it is (almost always) translated into Russian by the past tense, e. g. has written — написал, has arrived — приехал, etc.