| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | can be [verb] [prep] | 20687 |
|
| 2 | [modal v] be extend [prep] | 254 |
|
| 3 | [vb mod] be extend [prep] | 254 |
|
| 4 | can be extend [prep] | 64 |
|
| 5 | can [be] extend [prep] | 64 |
|
| 6 | can be extend [prep] | 64 |
|
| 7 | can [be] extend [prep] | 64 |
|
