| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] for several year | 124 |
|
| 2 | [verb] [adv prt] for year | 73 |
|
| 3 | [verb] [adv prt] for several | 44 |
|
| 4 | [verb] [adv prt] several year | 20 |
|
| 5 | [adv prt] for several year | 9 |
|
