| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | think he [modal v] have be | 21 |
|
| 2 | think he [modal v] have been | 21 |
|
| 3 | think he [vb mod] have be | 21 |
|
| 4 | think he must have be | 7 |
|
| 5 | think he must have be | 7 |
|
