| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [to-vb] [prep] [adv] a couple of | 8 |
|
| 2 | [to-vb] [prep] [adv] a couple of | 8 |
|
| 3 | [to-vb] [prep] [adv] a couple [prep] | 8 |
|
| 4 | [to-vb] [prep] [adv] a couple [prep] | 8 |
|
