| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] 30 year | 317 |
|
| 2 | [prep] 30 year | 317 |
|
| 3 | [adj] 30 year | 226 |
|
| 4 | [adv] 30 year | 211 |
|
| 5 | [adv] 30 year | 207 |
|
| 6 | for 30 year | 140 |
|
| 7 | for 30 year | 140 |
|
| 8 | [num ord] 30 year | 106 |
|
| 9 | over 30 year | 97 |
|
| 10 | over 30 year | 96 |
|
| 11 | [conj] 30 year | 92 |
|
| 12 | [adj] 30 year | 92 |
|
| 13 | past 30 year | 82 |
|
| 14 | past 30 year | 82 |
|
| 15 | last 30 year | 76 |
|
| 16 | last 30 year | 76 |
|
| 17 | [verb] 30 year | 62 |
|
| 18 | [subord] 30 year | 61 |
|
| 19 | than 30 year | 56 |
|
| 20 | than 30 year | 56 |
|
| 21 | [noun] 30 year | 53 |
|
| 22 | nearly 30 year | 38 |
|
| 23 | nearly 30 year | 38 |
|
| 24 | in 30 year | 37 |
|
| 25 | in 30 year | 37 |
|
| 26 | to 30 year | 36 |
|
| 27 | to 30 year | 36 |
|
| 28 | after 30 year | 35 |
|
| 29 | after 30 year | 35 |
|
| 30 | [art] 30 year | 34 |
|
