| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [adj] [noun] on | 13419 |
|
| 2 | keep a [adj] [noun] | 940 |
|
| 3 | keep a [noun] on | 130 |
|
| 4 | keep [adj] [noun] on | 76 |
|
