| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] [prep] a [noun sg] | 15531 |
|
| 2 | are [v-ing] [prep] a | 982 |
|
| 3 | are [v-ing] a [noun sg] | 964 |
|
| 4 | are [v-ing] [prep] [noun sg] | 919 |
|
| 5 | are [prep] a [noun sg] | 668 |
|
