| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [pron] [verb] an | 293 |
|
| 2 | [vb past] [pron] keep [art] | 38 |
|
| 3 | [vb past] [pron] keep [art] | 38 |
|
| 4 | [verb] [pron] keep an | 25 |
|
| 5 | [vb past] [pron] keep a | 18 |
|
