| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | about [n mass] [adj] [adj] year | 12 |
|
| 2 | about [n mass] [num] [adj] year | 11 |
|
| 3 | about [n mass] billion [adj] year | 6 |
|
| 4 | about [n mass] billion [adj] year | 6 |
|
| 5 | about [n mass] million [adj] year | 5 |
|
| 6 | about [n mass] million [adj] year | 5 |
|
| 7 | about [n mass] [adj] [art] year | 43 |
|
| 8 | about [n mass] [adj] [art] year | 43 |
|
| 9 | about [n mass] [adj] a year | 42 |
|
| 10 | about [n mass] [adj] a year | 42 |
|
| 11 | about [n mass] [adj] [adj] year | 12 |
|
| 12 | about [n mass] [adj] per year | 11 |
|
| 13 | about [n mass] [adj] [prep] year | 11 |
|
| 14 | about [n mass] [adj] per year | 11 |
|
| 15 | about [n mass] [adj] [prep] year | 11 |
|
| 16 | about [n mass] [adj] [num ord] year | 7 |
|
| 17 | about [n mass] [adj] last year | 5 |
|
| 18 | about [n mass] [adj] last year | 5 |
|
