| problem exist | 17.84 | But problems still exist. | ||
| evidence exist | 8.36 | Abundant evidence existed. | ||
| possibility exist | 6.45 | The possibility exists. | ||
| opportunity exist | 5.20 | Still, the opportunity exists. | ||
| difference exist | 4.74 | Differences still exist. | ||
| life exist | 4.67 | Does life exist on Mars? | ||
| condition exist | 4.48 | That condition no longer exists. | ||
| technology exist | 4.21 | The technology exists. | ||
| system exist | 3.42 | No such system now exists. | ||
| group exist | 3.16 | The Hezbollah group did not exist. | ||
| relationship exist | 3.16 | No official relationship exists. | ||
| law exist | 2.96 | The law exists. | ||
| agreement exist | 2.90 | Some agreements already exist. | ||
| gap exist | 2.83 | A similar gap exists for math skills. | ||
| plan exist | 2.76 | But no plan exists. | ||
| situation exist | 2.50 | A similar situation exists in Iowa. | ||
| danger exist | 2.44 | That danger exists. | ||
| program exist | 2.37 | No such program existed. | ||
| record exist | 2.30 | Did the records ever exist? | ||
| link exist | 2.04 | Previously it had denied such link existed. |