| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | refer to [pron] [noun] | 262 |
|
| 2 | [prep] refer to [pron] | 35 |
|
| 3 | [prep] refer to [noun] | 34 |
|
| 4 | [prep] to [pron] [noun] | 21 |
|
