| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | because they [vb past] [verb] a | 23 |
|
| 2 | because they [vb past] [vb pp] a | 15 |
|
| 3 | because they had [verb] a | 14 |
|
| 4 | because they [vb past] [to-vb] a | 6 |
|
