| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb mod] [verb] [adv] a year | 6 |
|
| 2 | it [modal v] [verb] [adv] a year | 6 |
|
| 3 | it [modal v] [vb infin] [adv] a year | 6 |
|
| 4 | it [modal v] [verb] [adv] a year | 6 |
|
| 5 | it [modal v] [verb] [adv] a year | 6 |
|
| 6 | it [modal v] [verb] [adv] a year | 6 |
|
| 7 | it [modal v] take [adv] a year | 5 |
|
| 8 | it [modal v] take [adv] a year | 5 |
|
