| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] be [v-ing] | 1028 |
|
| 2 | [modal v] be [v-ing] for | 714 |
|
| 3 | [modal v] [vb infin] [v-ing] for | 108 |
|
| 4 | [modal v] [vb infin] be for | 79 |
|
| 5 | [vb infin] be [v-ing] for | 66 |
|
