| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [verb] been [verb] for | 36 |
|
| 2 | [modal v] [verb] been look for | 13 |
|
| 3 | [vb mod] [verb] been look for | 13 |
|
| 4 | must [verb] been look [prep] | 6 |
|
| 5 | must [verb] been look [prep] | 6 |
|
| 6 | must [verb] be look for | 5 |
|
| 7 | must [verb] [been] look for | 5 |
|
| 8 | must [verb] been look for | 5 |
|
| 9 | must [verb] been look for | 5 |
|
| 10 | must [verb] [be] look for | 5 |
|
