Украинско-английский словарь - впливати

to influence, to have an influence (on, upon, over);to act (upon);to work on, to weigh (with);to affect, to have effect (on);

треба на нього вплинути — it is necessary to exercise (to use) influence on him.

to sail in (про судно);to swim in (про людину);to float in (про річ).