| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [adv] been to | 88 |
|
| 2 | had [adv] be to | 88 |
|
| 3 | had [adv] [been] to | 88 |
|
| 4 | had never [be] to | 45 |
|
| 5 | had ever [be] to | 10 |
|
| 6 | had already [be] to | 5 |
|
| 7 | had once [be] to | 5 |
|
