| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [vb pp] for two [noun] | 8 |
|
| 2 | have [been] [vb pp] for two [noun pl] | 8 |
|
| 3 | have [been] [vb pp] for two year | 6 |
|
| 4 | have [been] [vb pp] for two years | 6 |
|
