| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | years since [pron] have been | 18 |
|
| 2 | years since [pron] have [been] | 18 |
|
| 3 | years since [pers pn] have [been] | 18 |
|
| 4 | years since i have [been] | 9 |
|
| 5 | years since i have [been] | 9 |
|
| 6 | years since [pron] had [been] | 7 |
|
| 7 | years since [pron] 've [been] | 6 |
|
| 8 | years since he have [been] | 5 |
|
| 9 | years since he have [been] | 5 |
|
