| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | he must have been | 266 |
|
| 2 | he must have be | 266 |
|
| 3 | he must have be | 263 |
|
| 4 | he must have be | 261 |
|
| 5 | he must 've be | 5 |
|
