| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be [v-ing] for | 714 |
|
| 2 | [modal v] be [v-ing] [det] | 655 |
|
| 3 | be [v-ing] for [det] | 641 |
|
| 4 | [modal v] be for [det] | 65 |
|
