| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have be about [adj] year | 12 |
|
| 2 | have be about [num] year | 12 |
|
| 3 | have been about [adj] year | 12 |
|
| 4 | have be about [adj] years | 11 |
|
| 5 | have be about [adj] year | 10 |
|
