| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | may [be] [verb] to | 947 |
|
| 2 | [vb mod] [be] refer to | 257 |
|
| 3 | [modal v] [be] refer to | 257 |
|
| 4 | may [be] refer [prep] | 51 |
|
| 5 | may [be] refer [prep] | 51 |
|
| 6 | may [be] refer to | 46 |
|
| 7 | may [be] refer to | 46 |
|
| 8 | may [be] refer to | 46 |
|
