| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] a [adj] [noun] | 28480 |
|
| 2 | [v-ing] a [adj] [noun] | 26328 |
|
| 3 | [verb] a tough [noun] | 159 |
|
| 4 | [v-ing] [art] tough [noun] | 29 |
|
| 5 | [v-ing] a tough [noun] | 26 |
|
