| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [n mass] have been [vb pp] | 521 |
|
| 2 | [adv] have been [vb pp] | 185 |
|
| 3 | [adv] [n mass] have [vb pp] | 56 |
|
| 4 | [adv] [n mass] have been | 29 |
|
