| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has for [det] years [been] | 21 |
|
| 2 | has for [adj] years been | 21 |
|
| 3 | has for many years [been] | 15 |
|
| 4 | has for many years [been] | 15 |
|
| 5 | has for some years [been] | 5 |
|
| 6 | has for some years [been] | 5 |
|
