| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [am/are] [verb] [prep] a [adj] | 2331 |
|
| 2 | [verb] [prep] a [adj] period | 425 |
|
| 3 | [am/are] [verb] [prep] [adj] period | 16 |
|
| 4 | [am/are] [verb] [prep] a period | 12 |
|
| 5 | [am/are] [prep] a [adj] period | 6 |
|
