| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] have be [v-ing] | 555 |
|
| 2 | have be [v-ing] to | 507 |
|
| 3 | [Wh det] be [v-ing] to | 448 |
|
| 4 | [Wh det] have be to | 5 |
|
