| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | keep an [noun sg] on | 476 |
|
| 2 | [noun sg] keep an [noun sg] | 57 |
|
| 3 | [noun sg] an [noun sg] on | 29 |
|
| 4 | [noun sg] keep [noun sg] on | 8 |
|
