| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [am/are] [v-ing] [prep] be | 2012 |
|
| 2 | [det] [v-ing] [prep] be | 128 |
|
| 3 | [det] [am/are] [v-ing] [prep] | 107 |
|
| 4 | [det] [am/are] [prep] be | 39 |
|
