| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] [been] [verb] [prep] [det] year | 36 |
|
| 2 | [vb base] [been] [vb pp] [prep] [det] year | 27 |
|
| 3 | [vb base] [been] [v-ing] [prep] [det] year | 9 |
|
| 4 | [vb base] [been] [adj] [prep] [det] year | 8 |
|
| 5 | [vb base] [been] [adj] [prep] [det] year | 8 |
|
| 6 | [vb base] [been] known [prep] [det] year | 7 |
|
| 7 | [vb base] [been] know [prep] [det] year | 7 |
|
