| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] and keep a [noun sg] on | 8 |
|
| 2 | [noun pl] and keep a [noun sg] on | 8 |
|
| 3 | [noun pl] [coord] keep a [noun sg] on | 8 |
|
| 4 | [noun pl] [conj] keep a [noun sg] on | 6 |
|
| 5 | [noun pl] [conj] keep a eye on | 6 |
|
| 6 | [noun pl] [conj] keep an [noun sg] on | 6 |
|
