| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it must have be [prep] [prep] | 7 |
|
| 2 | it must have be [prep] for | 5 |
|
| 3 | it [vb mod] have be [prep] for | 5 |
|
| 4 | it must have be [prep] for | 5 |
|
| 5 | it must [verb] be [prep] for | 5 |
|
| 6 | it [modal v] have be [prep] for | 5 |
|
| 7 | it must [vb infin] be [prep] for | 5 |
|
| 8 | it must have be [prep] for | 5 |
|
| 9 | [pron] must have be [prep] for | 5 |
|
| 10 | it must have [be] [prep] for | 5 |
|
