| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adv] [v-ing] | 34956 |
|
| 2 | be [v-ing] [to-vb] | 31081 |
|
| 3 | [adv] [v-ing] [to-vb] | 5846 |
|
| 4 | be [adv] [to-vb] | 4016 |
|
