перете́чь

verbperfective (partner перетека́ть)rare

1.
to flow over, to flow into, to pour over, to pour into
Вода́ перетекла́ из одного́ бассе́йна в другой.
The water flowed from one pool into another.
Usually of liquids or loose masses moving from one container or place into another.
2.
to turn into, to change into, to transform into, to transition into
Разгово́р незаме́тно перетёк в спор.
The conversation imperceptibly turned into an argument.
Figurative: of a state or activity blending smoothly into another.

Examples

Вода из одного бассейна перетекла в другой.
The water flowed from one pool into the other.
Разговор незаметно перетёк в спор.
The conversation gradually turned into an argument.
Праздничный вечер плавно перетёк в ночную прогулку.
The festive evening smoothly turned into a nighttime walk.

Imperative
ты	перетеки́
вы	перетеки́те

Active present	-
Active past	перетёкший	overflowed, that has flowed over, that has flowed into, transferred (by flowing)
Passive present	-
Passive past	-
Gerund present	-
Gerund past	перетёкши	while doing (past)