| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [v-ing] on [prep] a [noun sg] | 11 |
|
| 2 | [is] [v-ing] on [prep] a [noun] | 11 |
|
| 3 | [is] [v-ing] on [prep] a [noun] | 8 |
|
| 4 | is [v-ing] on [prep] a [noun] | 7 |
|
| 5 | [is] going on [prep] a [noun] | 6 |
|
