| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [adv] [prep] [adj] years | 8 |
|
| 2 | has been [adv] [prep] [num] year | 8 |
|
| 3 | has been [adv] for [adj] year | 8 |
|
| 4 | has been [adv] for [adj] year | 8 |
|
| 5 | has been [adv] [prep] [adj] year | 8 |
|
