| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] or [verb] [prep] [art] | 42 |
|
| 2 | [vb mod] [vb infin] or [verb] [prep] [art] | 42 |
|
| 3 | could [vb infin] [conj] [verb] [prep] [art] | 39 |
|
| 4 | could [vb infin] or [verb] [prep] [art] | 5 |
|
| 5 | could [verb] or [verb] [prep] [art] | 5 |
|
| 6 | could [vb infin] or [verb] [prep] [art] | 5 |
|
| 7 | could [vb infin] or [verb] [prep] [art] | 5 |
|
