| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [adj] years [pers pn] has been | 25 |
|
| 2 | [prep] [adj] years it has [been] | 21 |
|
| 3 | [prep] [adj] years [pers pn] has [been] | 17 |
|
| 4 | [prep] recent years [pers pn] has [been] | 16 |
|
| 5 | [prep] recent years [pers pn] has [been] | 16 |
|
| 6 | in [adj] years [pers pn] has [been] | 16 |
|
| 7 | for [adj] years [pers pn] has [been] | 8 |
|
