| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [adj] for [det] [noun pl] | 25 |
|
| 2 | has been [adj] for [det] years | 16 |
|
| 3 | has been [adj] for many [noun pl] | 10 |
|
| 4 | has been [adj] for some [noun pl] | 8 |
|
| 5 | has been [adj] for several [noun pl] | 7 |
|
