| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [v-ing] a [noun] | 14037 |
|
| 2 | be [v-ing] a [noun] | 8910 |
|
| 3 | [prep] be a [noun] | 8489 |
|
| 4 | [prep] be [v-ing] [noun] | 626 |
|
| 5 | [prep] be [v-ing] a | 510 |
|
