| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] he could see a | 8 |
|
| 2 | [verb] he could see a | 8 |
|
| 3 | thought he could see a | 7 |
|
| 4 | think he could see a | 7 |
|
| 5 | [verb] he could see a | 7 |
|
