| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] for [art] | 3216 |
|
| 2 | [modal v] be [v-ing] [art] | 2134 |
|
| 3 | [modal v] be [v-ing] for | 714 |
|
| 4 | [modal v] be for [art] | 328 |
|
