| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] years [adv] [conj] have been | 7 |
|
| 2 | [num] years [adv] [conj] have been | 6 |
|
| 3 | years [adv] [conj] [pron] have been | 13 |
|
| 4 | years [adv] [conj] [pers pn] have been | 12 |
|
| 5 | years [adv] [conj] have [adv] been | 8 |
|
| 6 | years [adv] [conj] have [adv] been | 6 |
|
