| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [art] very [adj] period of | 35 |
|
| 2 | [art] very [adj] period of | 35 |
|
| 3 | a very [adj] period of | 33 |
|
| 4 | a very [adj] period of | 33 |
|
| 5 | very [adj] period of [noun sg] | 34 |
|
| 6 | very [adj] period of [noun] | 34 |
|
| 7 | very [adj] period of time | 24 |
|
| 8 | very [adj] period of time | 24 |
|
