| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] have been [vb pp] for several | 10 |
|
| 2 | [noun pl] have been [vb pp] for several | 5 |
|
| 3 | have [adv] been [vb pp] for several | 5 |
|
| 4 | have been [vb pp] for several [noun] | 17 |
|
| 5 | have been [vb pp] for several [noun pl] | 17 |
|
| 6 | have been [vb pp] for several year | 5 |
|
| 7 | have been [vb pp] for several years | 5 |
|
