| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [vb infin] [been] [verb] [prep] [art] | 155 |
|
| 2 | [vb mod] [vb infin] [been] [v-ing] [prep] [art] | 101 |
|
| 3 | [modal v] [vb infin] [been] [v-ing] [prep] [art] | 101 |
|
| 4 | should [vb infin] [been] [v-ing] [prep] [art] | 16 |
|
| 5 | should [vb infin] [been] [v-ing] [prep] [art] | 16 |
|
| 6 | should [vb infin] [be] [v-ing] [prep] [art] | 16 |
|
| 7 | should [vb infin] [been] [v-ing] [prep] [art] | 16 |
|
| 8 | should [verb] [been] [v-ing] [prep] [art] | 16 |
|
