?? ?? ??? ??? ?? ??? ? ???? ???? ??? ?? ???? ???? ??? ? ?????????????? (??????) ?????? ?????????????????????? ??????????? ?????????? ???????? ???? ??????, ????????????, ???? ???? (???????? ??)- ???? ?????????? ???? ???????? ?????????? ??????????? ????????.???????? ???? ???????? ???? ???? ????????. ?????? ?????? ???????? ????????????.

?????? ???????? ?????????, ????????????? ??????? ????????.???? ?????? ?? ???????? ?? ?? ?? ?? ?? ?? ?? ???? ?? ???? ?? ?????????????? ???????? ????, ???????? ?????? ????????? ???????????? ???? ????.????The two most commonly encountered grammatical rules in which this happens is when conjugating before or present tenses. For illustrations:???? ????