| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] [prep] be [adj] | 1749 |
|
| 2 | is [v-ing] [prep] be | 1111 |
|
| 3 | is [v-ing] [prep] [adj] | 519 |
|
| 4 | is [prep] be [adj] | 424 |
|
