| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [prep] the last six [noun pl] | 12 |
|
| 2 | [adv] [prep] the last six [noun] | 12 |
|
| 3 | [adv] [prep] the last six month | 7 |
|
| 4 | [adv] [prep] the last six months | 7 |
|
| 5 | [adv] for the last six [noun] | 5 |
|
