| English | Russian |
| tell the difference | разузнавать (between) |
| tell the difference | разузнать (between) |
| tell the difference between | разузнать (pf of разузнавать) |
| tell the difference between | разузнавать (impf of разузнать) |
| tell the difference | разузнаваться (between) |
| tell the difference | поразузнать (between) |