 |
| Russian | English |
| доподлинно известно | know full well |
| доподлинно известно | it is known for a fact (It is known for a fact, because it is something that already took place. • It is known for a fact that the Chinese made rockets and fireworks long before gunpowder was used in Europe. 4uzhoj) |
| доподлинно известно | know for a fact (требует замены конструкции с личной на безличную Beloshapkina) |
| доподлинно известно | it is known for certain (Anglophile) |
| мне доподлинно известно | I know for a fact |