| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [adj] [noun] period [prep] | 49 |
|
| 2 | a [adj] [noun sg] period [prep] | 48 |
|
| 3 | a [adj] [noun] period for | 13 |
|
| 4 | a [adj] [noun] period for | 13 |
|
| 5 | a [adj] [noun] period of | 9 |
|
| 6 | a [adj] [noun] period of | 9 |
|
| 7 | a [adj] [noun] period in | 8 |
|
| 8 | a [adj] [noun] period in | 8 |
|
| 9 | a [adj] time period [prep] | 7 |
|
| 10 | a [adj] time period [prep] | 7 |
|
| 11 | a maximum [noun] period [prep] | 5 |
|
