The practice of working with international students and postgraduates who have completed preparatory courses in Russian and are studying at a technical university has shown the need to continue working on the adverbial participle.

Vietnamese students study grammar seriously, they work a lot on phonetics: they learn to pronounce the sounds g, d, l, l', w, w, c that are "difficult" for them; read "wow" as "ovo"; change sounds in the flow of speech in full style in accordance with the laws of the Russian language, for example at the junction of the words noisy before noisy assimilate, and noisy before sonants and in not assimilate, etc.