| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | only [prep] a few months | 6 |
|
| 2 | only [prep] [art] few months | 6 |
|
| 3 | only [prep] [art] few months | 6 |
|
| 4 | only [prep] [art] few months | 6 |
|
| 5 | only [prep] a few months | 6 |
|
| 6 | only for [art] few months | 6 |
|
| 7 | only [prep] [art] few months | 6 |
|
| 8 | only for [art] few months | 6 |
|
