| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [v-ing] [prep] the | 1867 |
|
| 2 | [Wh pn] is [v-ing] [prep] | 309 |
|
| 3 | [Wh pn] is [v-ing] the | 165 |
|
| 4 | [Wh pn] is [prep] the | 103 |
|
