| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [verb] [prep] | 91309 |
|
| 2 | [is] [v-ing] [prep] | 15735 |
|
| 3 | [be] missing [prep] | 294 |
|
| 4 | [is] miss [prep] | 77 |
|
