| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | may be [verb] [prep] | 8067 |
|
| 2 | [modal v] be extend [prep] | 254 |
|
| 3 | may be extend [prep] | 30 |
|
| 4 | may [be] extend [prep] | 30 |
|
| 5 | may [be] extend [prep] | 30 |
|
