| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be [v-ing] [art] | 2134 |
|
| 2 | [vb mod] be [v-ing] [art] | 2134 |
|
| 3 | may be [verb] [art] | 391 |
|
| 4 | may be [v-ing] [art] | 148 |
|
| 5 | may [be] [v-ing] [art] | 148 |
|
| 6 | may be [v-ing] [art] | 148 |
|
| 7 | may be [v-ing] [art] | 148 |
|
| 8 | may [be] [v-ing] [art] | 148 |
|
