Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
croak [krəuk] vi (frog) ква́кать (impf) (bird) ка́ркать (impf) (person) хрипе́ть (impf)
n (see vi) ква́канье; ка́рканье; хрип
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.
Русский: