| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [been] [vb pp] [prep] [num] [noun] | 738 |
|
| 2 | [verb] [been] [vb pp] [prep] [adj] year | 329 |
|
| 3 | [verb] [been] [verb] [prep] [num] year | 240 |
|
| 4 | [verb] [be] [vb pp] [prep] [num] year | 140 |
|
