| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [modal v] [verb] a | 1935 |
|
| 2 | and they [modal v] [verb] | 1816 |
|
| 3 | and [modal v] [verb] a | 752 |
|
| 4 | and they [verb] a | 604 |
|
