| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] a [noun] on | 1083 |
|
| 2 | to keep a [noun] on | 183 |
|
| 3 | [vb pp] to keep a [noun] | 60 |
|
| 4 | [vb pp] to keep [noun] on | 9 |
|
