| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that had [adv] | 821 |
|
| 2 | [conj] had once | 113 |
|
| 3 | that [verb] once | 111 |
|
| 4 | that [vb past] once | 103 |
|
| 5 | that have once | 97 |
|
