| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [prep] [verb] is | 59 |
|
| 2 | [vb pp] [prep] [v-ing] [be] | 36 |
|
| 3 | [vb pp] [prep] [v-ing] be | 36 |
|
| 4 | [verb] [prep] [v-ing] is | 30 |
|
| 5 | [vb pp] [prep] [v-ing] [is] | 7 |
|
