| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be years since | 32 |
|
| 2 | [be] years since | 32 |
|
| 3 | 's [noun] since | 27 |
|
| 4 | 's [noun pl] since | 26 |
|
| 5 | [is] years since | 16 |
|
| 6 | 's years [conj] | 15 |
|
| 7 | 's year since | 14 |
|
