| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a couple of weeks [adv] [prep] | 11 |
|
| 2 | a couple of week [adv] [prep] | 11 |
|
| 3 | a couple of week [adv] [prep] | 11 |
|
| 4 | a couple of week [adv] [prep] | 11 |
|
| 5 | a couple of week ago [prep] | 7 |
|
