| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] [prep] the last century | 22 |
|
| 2 | [noun prp] [prep] the last century | 22 |
|
| 3 | [noun prp] in the last century | 14 |
|
| 4 | [noun prp] in the last century | 14 |
|
