| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] last for [adj] | 59 |
|
| 2 | last for [adj] years | 23 |
|
| 3 | [modal v] last [adj] years | 18 |
|
| 4 | [modal v] last for years | 13 |
|
