| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [v-ing] [adv] [noun] [prep] | 9 |
|
| 2 | [is] [v-ing] [adv] [noun] of | 6 |
|
| 3 | [is] [v-ing] [adv] [n mass] [prep] | 5 |
|
