No | Pattern | Freq | Relations |
---|---|---|---|
1 | is [adj] [conj] [det] [noun pl] | 343 | |
2 | is doubtful [conj] [det] [noun] | 27 | |
3 | is doubtful [conj] [adj] [noun pl] | 14 | |
4 | be doubtful [conj] [det] [noun pl] | 11 | |
5 | [be] doubtful [conj] [det] [noun pl] | 11 | |
6 | [is] doubtful [conj] [det] [noun pl] | 9 |