| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should be [verb] to | 1848 |
|
| 2 | should be [vb pp] to | 1810 |
|
| 3 | [vb mod] be extended to | 136 |
|
| 4 | [modal v] be extended to | 136 |
|
| 5 | should be extended [prep] | 49 |
|
| 6 | should be extended [prep] | 49 |
|
| 7 | should be extend to | 31 |
|
| 8 | should be extended to | 30 |
|
| 9 | should [be] extended to | 30 |
|
| 10 | should be extended to | 30 |
|
| 11 | should [be] extended to | 30 |
|
| 12 | should be extended to | 30 |
|
