| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | for a few months at [art] | 5 |
|
| 2 | for a few months at [art] | 5 |
|
| 3 | [prep] a few months at [art] | 5 |
|
| 4 | [prep] a few months at [art] | 5 |
|
