| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] have been [art] [noun sg] [Wh adv] | 16 |
|
| 2 | [vb mod] have been [art] [noun sg] [Wh adv] | 16 |
|
| 3 | [vb mod] have been [art] [noun sg] when | 12 |
|
| 4 | [vb mod] have been a [noun sg] [Wh adv] | 10 |
|
| 5 | [vb mod] have been a [noun sg] [Wh adv] | 10 |
|
| 6 | must have been [art] [noun sg] [Wh adv] | 9 |
|
| 7 | [vb mod] have been [art] time [Wh adv] | 8 |
|
| 8 | [vb mod] have been the [noun sg] [Wh adv] | 6 |
|
| 9 | [vb mod] have been the [noun sg] [Wh adv] | 6 |
|
