| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [det] [noun] [pers pn] | 420 |
|
| 2 | [prep] a [adj] practice [pers pn] | 10 |
|
| 3 | [prep] a [det] practice [pron] | 7 |
|
| 4 | [prep] [art] [det] practice [pers pn] | 7 |
|
