| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [noun sg] on [adj] | 2811 |
|
| 2 | keep a [noun sg] on | 606 |
|
| 3 | keep a [noun sg] [adj] | 79 |
|
| 4 | keep [noun sg] on [adj] | 10 |
|
