| In the manner mentioned | 23 |
| In the majority? | 16 |
| In the main? | 12 |
| In the main stem of a plant | 27 |
| In the main | 11 |
| In the mail | 11 |
| In the Mafia | 12 |
| In the lowest possible tax bracket | 34 |
| In the low 90s? | 15 |
| In the loop, with "in" | 32 |
| In the loop | 11 |
| In the log, say | 15 |
| In the limelight | 16 |
| In the least favorable case | 27 |
| In the least bit | 16 |
| In the least | 12 |
| In the league's cellar | 26 |
| In the lead | 11 |
| In the last month: Abbr. | 24 |
| In the last little while | 24 |
| In the lap of the ___ | 21 |
| In the Land of Nod | 18 |
| In the know, totally | 20 |
| In the know, old-style | 22 |
| In the know, informally | 23 |
| In the know, in old slang | 25 |
| In the know, daddy-o | 20 |
| In the know about | 17 |
| In the know | 11 |
| In the intervening time | 23 |
| In the interval | 15 |
| In the initial phases | 21 |
| In the infirmary | 16 |
| In the indefinite future | 24 |
| In the immediate vicinity | 25 |
| In the immediate neighborhood? | 30 |
| In the immediate area | 21 |
| In the ideal case | 17 |
| In the hunt | 11 |
| In the human brain it may be temporal or frontal | 48 |
| In the hull | 11 |
| In the hub of | 13 |
| In the house | 12 |
| In the hospital | 15 |
| In the horse latitudes | 22 |
| In the home of: Fr. | 19 |
| In the hole | 11 |
| In the hold, to sailors | 23 |
| In the hold, say | 16 |
| In the hold, nautically | 23 |
| In the hold, asea | 17 |
| In the hold | 11 |
| In the high 80s | 15 |
| In the high 70s | 15 |
| In the heavens | 14 |
| In the Heat of the Night setting | 32 |
| In the heart of | 15 |
| In the hay, so to speak | 23 |
| In the hands of | 15 |
| In the habit of | 15 |
| In the gym Mr. Ridder _____ | 27 |
| In the group of | 15 |
| In the group | 12 |
| In the ground, in a way | 23 |
| In the groove | 13 |
| In the green-room | 17 |
| In the go position | 18 |
| In the general vicinity | 23 |
| In the garage, maybe | 20 |
| In the future | 13 |
| In the front | 12 |
| In the fridge | 13 |
| In the freezer | 14 |
| In the form of a race track | 27 |
| In the foreseeable future | 25 |
| In the foreground | 17 |
| In the flesh? | 13 |
| In the flesh, on TV | 19 |
| In the flesh | 12 |
| In the first place? | 19 |
| In the first place: abbr. | 25 |
| In the first place | 18 |
| In the first line of a novel, he wrote, "and the clocks were striking 13" | 83 |
| In the fetal position | 21 |
| In the fashion of | 17 |
| In the family | 13 |
| In the face of | 14 |
| In the extreme rear | 19 |
| In the extreme | 14 |
| In the existing circumstances | 29 |
| In the event that | 17 |
| In the event of an emergency | 28 |
| In the event it's true | 26 |
| In the event | 12 |
| In the evening | 14 |
| In the envelope: abbr. | 22 |
| In the envelope | 15 |
| In the env. | 11 |
| In the end, though, the media portrayed the press conference as bland and amicable -- the latest in a series of ___ | 115 |
| In the end, the score was 21-0. I got __! | 41 |