| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [vb pp] [adv] | 19088 |
|
| 2 | had [vb pp] [to-vb] | 8383 |
|
| 3 | [vb pp] [adv] [to-vb] | 7414 |
|
| 4 | had [adv] [to-vb] | 521 |
|
