| in Strömen regnen | raining cats and dogs |
| in Sprachen reden | speak in tongues |
| in Falten legen | flute |
| in rauen Mengen | as if it grew on trees |
| Bindfäden regnen | rain cats and dogs |
| in Betrieb nehmen | commission |
| in Klammern setzen | parenthesize |
| in Pose werfen | attitudinize |
| in den Roten | in the red |
| in drei Tagen | in three days |
| in der Regel | as a rule |
| ins Stocken geraten | grind to a halt stall |
| instrumentell | instrumental |
| anstrengen | make an effort |
| instruieren | instruct |
| inkrementieren | increment |
| ins Leben rufen | constitute |
| warmer Regen | windfall |
| 24-Stunden-Rennen | 24-hour race |
| ein Vermögen kosten | an arm and a leg |