| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] are kept [prep] a | 22 |
|
| 2 | [noun] are kept to a | 21 |
|
| 3 | [noun sg] are kept [prep] a | 9 |
|
| 4 | [noun] are kept in a | 7 |
|
