| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] an [noun] | 2986 |
|
| 2 | [verb] had an [noun] | 304 |
|
| 3 | [modal v] [verb] had [noun] | 175 |
|
| 4 | [modal v] [verb] had an | 73 |
|
