| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] think [prep] this | 20 |
|
| 2 | [vb past] think about this | 12 |
|
| 3 | [vb past] to think [prep] this | 8 |
|
| 4 | [vb past] thinking [prep] this | 8 |
|
