| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb past] be [adv] to | 8 |
|
| 2 | it [vb past] [been] [adv] to | 8 |
|
| 3 | it [vb past] been [adv] to | 8 |
|
| 4 | it [vb past] [be] [adv prt] to | 6 |
|
| 5 | it had [be] [adv] to | 6 |
|
