| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [adv] be [verb] to | 2151 |
|
| 2 | [modal v] [adv] be [v-ing] [prep] | 824 |
|
| 3 | [modal v] [adv] be [v-ing] [prep] | 824 |
|
| 4 | [modal v] [adv] [be] [v-ing] to | 148 |
|
| 5 | [modal v] [adv] be [v-ing] to | 148 |
|
