| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | this [noun] have been concerned | 14 |
|
| 2 | this [noun] have [been] concerned | 14 |
|
| 3 | this [noun] have [be] concerned | 14 |
|
| 4 | this [noun sg] have [be] concerned | 14 |
|
| 5 | this [noun] have be concerned | 14 |
|
| 6 | this [noun] has [be] concerned | 12 |
|
| 7 | this chapter have [be] concerned | 8 |
|
| 8 | this chapter have [be] concerned | 8 |
|
