| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that is [adv] [noun sg] [noun sg] | 12 |
|
| 2 | that is [Wh adv] [noun] [noun sg] | 10 |
|
| 3 | that is why [noun] [noun sg] | 7 |
|
| 4 | that is why [noun] [noun sg] | 7 |
|
