| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] [prep] a [adj] | 2845 |
|
| 2 | [be] [v-ing] [prep] a [adj] | 2842 |
|
| 3 | [be] [verb] on a [adj] | 2108 |
|
| 4 | [be] [v-ing] on [art] [adj] | 659 |
|
| 5 | [be] [v-ing] on a [adj] | 299 |
|
