| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] may be [prep] | 544 |
|
| 2 | [pron] may be [v-ing] | 506 |
|
| 3 | may be [v-ing] [prep] | 305 |
|
| 4 | [pron] be [v-ing] [prep] | 121 |
|
