| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have be [vb pp] for two year | 15 |
|
| 2 | have [be] [vb pp] for two year | 15 |
|
| 3 | have [been] [vb pp] for two year | 15 |
|
| 4 | have been [vb pp] for two year | 15 |
|
| 5 | have [be] [vb pp] for two years | 15 |
|
| 6 | have [be] [vb pp] for two year | 6 |
|
| 7 | has [be] [vb pp] for two year | 6 |
|
