| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have been [adv] [verb] but | 6 |
|
| 2 | [modal v] have be [adv] [verb] but | 6 |
|
| 3 | [modal v] have be [adv] [verb] but | 6 |
|
| 4 | [vb mod] have be [adv] [verb] but | 6 |
|
