| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | are [verb] [adv] [prep] a [noun] | 260 |
|
| 2 | are [verb] [adv] [prep] a [noun sg] | 246 |
|
| 3 | [be] [verb] [adv] [prep] a period | 30 |
|
| 4 | be [verb] [adv] [prep] a period | 30 |
|
| 5 | are [verb] [adv] [prep] [art] period | 7 |
|
| 6 | are [verb] [adv] [prep] [art] period | 7 |
|
| 7 | [am/are] [verb] [adv] [prep] a period | 6 |
|
| 8 | are [verb] [adv] [prep] a period | 5 |
|
| 9 | are [verb] [adv] [prep] a period | 5 |
|
| 10 | are [verb] [adv] [prep] a period | 5 |
|
