| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] must have be | 1516 |
|
| 2 | [pers pn] must have been | 1514 |
|
| 3 | it must have be | 760 |
|
| 4 | he must have be | 258 |
|
| 5 | she must have be | 137 |
|
| 6 | they must have be | 120 |
|
| 7 | i must have be | 116 |
|
| 8 | you must have be | 88 |
|
| 9 | we must have be | 17 |
|
| 10 | them must have be | 9 |
|
