| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] has to be seen to | 7 |
|
| 2 | [noun sg] has to be seen to | 6 |
|
| 3 | has to be seen to [be] | 15 |
|
| 4 | has to be seen to [be] | 15 |
|
| 5 | has to be seen to be | 15 |
|
| 6 | has to be seen to be | 15 |
|
