| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | us [prep] some time | 12 |
|
| 2 | us [prep] some time | 12 |
|
| 3 | us for some time | 7 |
|
| 4 | us for some time | 7 |
|
| 5 | us at some time | 5 |
|
| 6 | us at some time | 5 |
|
