| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] for a [adj] | 305 |
|
| 2 | [modal v] [vb infin] a [adj] time | 178 |
|
| 3 | [vb infin] for a [adj] time | 40 |
|
| 4 | [modal v] [vb infin] for a time | 5 |
|
