| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] a couple [prep] | 145 |
|
| 2 | [was/were] a couple of | 142 |
|
| 3 | were a couple [prep] | 83 |
|
| 4 | was a couple [prep] | 62 |
|
