| I can tell you |
| I can't hear you over the sound of |
| ice-cold |
| ice cool |
| I choose violence |
| icing on the cake |
| idiot mittens |
| I'd like to see someone try |
| I'd say |
| if anything |
| if I'm not there, start without me |
| if it's all the same |
| if needs be |
| if nothing else |
| if these walls could talk |
| if the shoe fits |
| I have a bridge to sell you |
| I just work here |
| I'll be bound |
| I'll be damned |
| I'll say |
| I'll tell you |
| I'm not the one |
| I'm sure |
| in a big way |
| in a bind |
| in a bubble |
| in a corner |
| in a flash |
| in a foam |
| in a hen's hiney |
| in a jam |
| in all modesty |
| in all one's glory |
| in a minor key |
| in and of itself |
| in any case |
| in any event |
| in a pig's arse |
| in a pig's eye |
| in a real state |
| in a right state |
| in a state |
| in at the deep end |
| in bad shape |
| in bad taste |
| in business |
| in capital letters |
| inch away |
| inch back |
| inchmeal |
| inch-perfect |
| in cold blood |
| in collar |
| in deep |
| in detail |
| in Dickie's meadow |
| indict a ham sandwich |
| in effigy |
| I never did |
| in evidence |
| in fee |
| in for a dime, in for a dollar |
| in for an inch, in for a mile |
| in for the kill |
| in front of one's nose |
| in good odor |
| in good sorts |
| in high dudgeon |
| in high gear |
| in jig time |
| ink in |
| in layperson's terms |
| in laywoman's terms |
| in living memory |
| inner circle |
| in no small measure |
| in no small part |
| in no uncertain terms |
| in no way, shape, or form |
| in one foul swoop |
| in one go |
| in one's bare skin |
| in one's bones |
| in one's head |
| in one's hip pocket |
| in one's pocket |
| in one's right mind |
| in other news |
| in other words |
| in plain view |
| in rare form |
| in record time |
| in retreat |
| in shape |
| in short pants |
| inside job |
| inside joke |
| inside the box |
| in someone's black books |