| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | keep an [noun] [prep] [pron] | 226 |
|
| 2 | [noun sg] an [noun] [prep] [pron] | 49 |
|
| 3 | [noun sg] keep [noun] [prep] [pron] | 41 |
|
| 4 | [noun sg] keep an [noun] [prep] | 41 |
|
