| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | this [vb past] [prep] | 1497 |
|
| 2 | [vb past] [prep] about | 262 |
|
| 3 | this [vb past] about | 41 |
|
| 4 | this [prep] about | 15 |
|
