| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] several months | 256 |
|
| 2 | [noun prp] [prep] several | 169 |
|
| 3 | [noun prp] [prep] months | 12 |
|
| 4 | [noun prp] several months | 7 |
|
