| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [vb pp] [prep] [v-ing] | 13324 |
|
| 2 | be [vb pp] [prep] [v-ing] | 13324 |
|
| 3 | is [verb] [prep] [v-ing] | 2263 |
|
| 4 | is [vb pp] [prep] [verb] | 2177 |
|
| 5 | [is] [vb pp] [prep] [v-ing] | 2106 |
|
