| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have taken a [adj] [noun] | 389 |
|
| 2 | must have a [adj] [noun] | 218 |
|
| 3 | must have taken a [adj] | 12 |
|
| 4 | must have taken a [noun] | 10 |
|
| 5 | must have taken [adj] [noun] | 6 |
|
