| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [num] years | 1980 |
|
| 2 | [been] [num] [noun] | 555 |
|
| 3 | [been] [num] [noun pl] | 403 |
|
| 4 | [been] [adj] years | 149 |
|
| 5 | [been] [num] year | 124 |
|
