| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | couple [prep] year ' time | 5 |
|
| 2 | couple of year [unc] time | 5 |
|
| 3 | couple [prep] year [unc] time | 5 |
|
| 4 | couple [prep] years [unc] time | 5 |
|
| 5 | couple [prep] year ' time | 5 |
|
| 6 | couple [prep] year ['s] time | 5 |
|
