| No | Pattern | Freq | Relations |
|---|---|---|---|
| 31 | [num] year [unc] experience in | 36 |
|
| 32 | [num] year [unc] experience in | 36 |
|
| 33 | [num] year [unc] experience of | 24 |
|
| 34 | [num] year [unc] experience of | 24 |
|
