| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] must [be] [verb] to [be] | 10 |
|
| 2 | [noun pl] must [be] [vb pp] to [be] | 10 |
|
| 3 | [noun pl] must [be] [verb] to be | 10 |
|
| 4 | [noun pl] must be [verb] to [be] | 10 |
|
| 5 | [noun pl] must [be] seen to [be] | 6 |
|
| 6 | [noun pl] must [be] see to [be] | 6 |
|
