| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | last three year [pers pn] | 16 |
|
| 2 | last three year [pers pn] | 16 |
|
| 3 | last three years [pers pn] | 16 |
|
| 4 | last three year we | 5 |
|
| 5 | last three year i | 5 |
|
