| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] for a [adj] | 266 |
|
| 2 | [verb] for a [adj] while | 71 |
|
| 3 | [modal v] [verb] for a while | 32 |
|
| 4 | [modal v] [verb] a [adj] while | 14 |
|
