| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] for [adj] year | 291 |
|
| 2 | [verb] for several year | 124 |
|
| 3 | [v-ing] for [det] year | 67 |
|
| 4 | [v-ing] for several [noun] | 46 |
|
| 5 | [v-ing] [prep] several year | 19 |
|
| 6 | [v-ing] for several year | 17 |
|
