| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [v-ing] [prep] [noun] | 1834 |
|
| 2 | is [v-ing] [prep] [noun sg] | 912 |
|
| 3 | be [v-ing] [prep] front | 117 |
|
| 4 | [be] [v-ing] [prep] front | 117 |
|
| 5 | is [verb] [prep] front | 30 |
|
| 6 | [is] [v-ing] [prep] front | 17 |
|
| 7 | is [v-ing] [prep] front | 13 |
|
| 8 | is [v-ing] [prep] front | 13 |
|
