| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] about [num] [noun pl] [prep] | 375 |
|
| 2 | [prep] a [num] [noun pl] [prep] | 247 |
|
| 3 | about a [num] [noun pl] [prep] | 55 |
|
| 4 | [prep] about a [num] [noun pl] | 43 |
|
