| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] [prep] a [noun sg] | 15531 |
|
| 2 | [be] [prep] a [noun sg] | 1255 |
|
| 3 | [be] [v-ing] a [noun sg] | 811 |
|
| 4 | [be] [v-ing] [prep] a | 722 |
|
| 5 | [be] [v-ing] [prep] [noun sg] | 718 |
|
