| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [adj] for [num] [noun pl] | 19 |
|
| 2 | has been [adj] for [num] year | 13 |
|
| 3 | has been [adj] for [num] years | 13 |
|
| 4 | has been [adj] for [num] month | 5 |
|
| 5 | has been [adj] for [num] months | 5 |
|
