| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [be] [verb] [conj] [adj] | 438 |
|
| 2 | should [be] [vb pp] [conj] [adj] | 436 |
|
| 3 | [modal v] [be] recognised [conj] [adj] | 15 |
|
| 4 | should [be] recognise [conj] [adj] | 5 |
|
