| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [adv] looked at the | 9 |
|
| 2 | had [adv] look at the | 7 |
|
| 3 | had [not/n't] look at the | 5 |
|
| 4 | had not look at the | 5 |
|
