| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] [prep] | 143133 |
|
| 2 | [be] [v-ing] [prep] | 7202 |
|
| 3 | [be] thinking [prep] | 1685 |
|
| 4 | [be] think [prep] | 561 |
|
