Quote Originally Posted by Throbert McGee View Post
so right there you've got a great illustration of how "indeterminate/multidirectional" Verbs Of Motion are used. (I.e., you say "Они хорошо плавают", not "Они хорошо плывут".)
i wouldn't call it "indeterminate/multidirectional" as there's a quite clear philological definition of the distinction between these forms of the verb, namely imperfective and perfective forms which roughly correspond to present indefinite and present continuous tenses in English

Russian Verbs