| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [am/are] [prep] [art] period | 11 |
|
| 2 | are [prep] [art] period | 10 |
|
| 3 | [am/are] [prep] [art] period | 10 |
|
| 4 | [am/are] for [art] period | 6 |
|
| 5 | [am/are] [prep] the period | 6 |
|
| 6 | [am/are] [prep] the period | 6 |
|
| 7 | [am/are] [prep] a period | 5 |
|
| 8 | [am/are] [prep] a period | 5 |
|
