| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [verb] [pron] three year | 7 |
|
| 2 | it [verb] [pers pn] three year | 7 |
|
| 3 | it [verb] [been] three year | 6 |
|
| 4 | it [verb] been three year | 6 |
|
| 5 | it [verb] [be] three year | 6 |
|
| 6 | it [verb] be three year | 6 |
|
