| 1 | in good condition |
| 2 | in good shape |
| 3 | in memory of |
| 4 | in nest to no time |
| 5 | in no time |
| 6 | in no way |
| 7 | in one's shoes |
| 8 | in order to |
| 9 | in person |
| 10 | in public |
| 11 | in shape |
| 12 | in the dark |
| 13 | in the end |
| 14 | in the long run |
| 15 | in the middle of sth./doing sth. |
| 16 | in the mood for sth. |
| 1 | in the red |
| 2 | in the seventh heaven |
| 3 | in the works |
| 4 | in the world |
| 5 | in time |
| 6 | in vain |
| 7 | income tax |
| 8 | information desk |
| 9 | information center |
| 10 | inside out |
| 11 | insist on doing sth. |
| 12 | instead of |
| 1 | in struction manual |
| 2 | instruction sheet |
| 3 | introductory course |
| 4 | invest (time/ money) in |
| 5 | Is there anything wrong with…? |
| 6 | it couldn't hurt to |
| 7 | It never fails |
| 8 | It takes sb. some time to do sth. |
| 9 | it's about time |
| 10 | jazz band |