| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | four years before [pers pn] | 10 |
|
| 2 | four years since [pers pn] | 9 |
|
| 3 | four years [subord] he | 9 |
|
| 4 | four years after [pers pn] | 7 |
|
| 5 | four years [subord] she | 5 |
|
| 6 | four years [subord] it | 5 |
|
| 7 | four years [subord] i | 5 |
|
