| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [Wh adv] [noun sg] [noun sg] | 32 |
|
| 2 | is why [noun] [noun sg] | 17 |
|
| 3 | is where [noun] [noun sg] | 15 |
|
| 4 | is [Wh adv] [noun prp] [noun sg] | 8 |
|
| 5 | is when [noun] [noun sg] | 6 |
|
| 6 | is how [noun] [noun sg] | 5 |
|
