| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] must have been [verb] [prep] | 142 |
|
| 2 | [pron] must have been [verb] [prep] | 142 |
|
| 3 | [pron] [modal v] have been [verb] for | 117 |
|
| 4 | [pron] must have been [verb] for | 19 |
|
| 5 | [pron] must have [been] [verb] for | 19 |
|
| 6 | [pron] must [vb infin] been [verb] for | 19 |
|
| 7 | [pron] must have [be] [verb] for | 19 |
|
| 8 | [pron] must have been [verb] for | 19 |
|
| 9 | [pron] must have be [verb] for | 19 |
|
| 10 | [pron] must [verb] been [verb] for | 19 |
|
