| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] to be [vb pp] to be | 13 |
|
| 2 | [vb base] to be [vb pp] to [be] | 13 |
|
| 3 | [vb base] to be seen to [be] | 10 |
|
| 4 | have to be [vb pp] to [be] | 9 |
|
