| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [been] [vb pp] [prep] two year | 22 |
|
| 2 | have [been] [vb pp] [prep] two year | 22 |
|
| 3 | [vb -s] [been] [vb pp] [prep] two year | 10 |
|
| 4 | has [been] [vb pp] [prep] two year | 9 |
|
| 5 | [vb base] [been] [vb pp] [prep] two year | 7 |
|
| 6 | have [been] [vb pp] [prep] two year | 7 |
|
| 7 | [been] [vb pp] [prep] [adv] two year | 5 |
|
| 8 | [been] [vb pp] [prep] over two year | 5 |
|
| 9 | [been] [vb pp] [prep] over two year | 5 |
|
| 10 | [been] [vb pp] [prep] [adv] two year | 5 |
|
| 11 | [been] [vb pp] [prep] two year [prep] | 11 |
|
| 12 | [been] [vb pp] [prep] two year [prep] | 11 |
|
