| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] [prep] be | 6911 |
|
| 2 | be [v-ing] [prep] be | 6911 |
|
| 3 | [am/are] [v-ing] [prep] be | 2012 |
|
| 4 | am [verb] [prep] be | 75 |
|
| 5 | am [v-ing] [prep] [be] | 59 |
|
