| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] be extend to the | 30 |
|
| 2 | [vb mod] be extend to the | 30 |
|
| 3 | [vb mod] [be] extend to the | 30 |
|
| 4 | [vb mod] [be] extended to the | 29 |
|
| 5 | should [be] extend to the | 9 |
|
| 6 | could [be] extend to the | 7 |
|
