| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] take a very long time | 7 |
|
| 2 | [vb mod] take a very long time | 7 |
|
| 3 | take a very long time [verb] | 6 |
|
| 4 | take a very long time [to-vb] | 6 |
|
