| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | 30 year [conj] is | 8 |
|
| 2 | 30 year [coord] [is] | 8 |
|
| 3 | 30 years [conj] [is] | 8 |
|
| 4 | 30 year and [is] | 8 |
|
| 5 | 30 year and [is] | 8 |
|
