| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] for a [adj] time | 28 |
|
| 2 | [modal v] [verb] for a [adj] time | 25 |
|
| 3 | [modal v] [verb] for a long time | 17 |
|
| 4 | [modal v] [verb] for a long time | 15 |
|
