| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] be [vb pp] to be [v-ing] | 75 |
|
| 2 | [modal v] be [vb pp] to be [v-ing] | 75 |
|
| 3 | may be [vb pp] to be [verb] | 44 |
|
| 4 | may be [vb pp] to [be] [v-ing] | 11 |
|
| 5 | may be [vb pp] to be [v-ing] | 11 |
|
| 6 | may [be] [vb pp] to be [v-ing] | 11 |
|
| 7 | may be [vb pp] to be [v-ing] | 11 |
|
| 8 | may be [verb] to be [v-ing] | 11 |
|
| 9 | may be [vb pp] to [be] [v-ing] | 11 |
|
| 10 | may be [vb pp] to be [v-ing] | 11 |
|
| 11 | may be [vb pp] [prep] be [v-ing] | 11 |
|
| 12 | may be [vb pp] [prep] be [v-ing] | 11 |
|
