| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] about | 3470 |
|
| 2 | [noun] [prep] 20 | 1324 |
|
| 3 | [prep] about 20 | 143 |
|
| 4 | [noun] about 20 | 32 |
|
