| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | for a long time | 1601 |
|
| 2 | [to-vb] a long time | 52 |
|
| 3 | [to-vb] for a long | 23 |
|
| 4 | [to-vb] for a time | 5 |
|
