| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] a [noun] | 174585 |
|
| 2 | used [prep] a [noun] | 1622 |
|
| 3 | [noun] used [prep] [noun] | 1369 |
|
| 4 | [noun] used [prep] a | 178 |
|
| 5 | [noun] used a [noun] | 5 |
|
