SN4 ""

No	Pattern	Freq
1	[verb] something [conj] is	57
2	be something [conj] is	52
3	[be] something [conj] is	52
4	[prep] something [conj] is	46
5	[prep] something [conj] is	46
6	[is] something [conj] is	43
7	is something [conj] is	35
8	[adv] something [conj] is	20
9	[to-vb] something [conj] is	15
10	[conj] something [conj] is	15
11	[v-ing] something [conj] is	13
12	of something [conj] is	12
13	of something [conj] is	12
14	for something [conj] is	12
15	for something [conj] is	12
16	do something [conj] is	11
17	not something [conj] is	10
18	not something [conj] is	10
19	[vb -s] something [conj] is	10
20	[not/n't] something [conj] is	10
21	[vb infin] something [conj] is	10
22	's something [conj] is	8
23	[subord] something [conj] is	8
24	doing something [conj] is	7
25	[be] something [conj] is	7
26	[vb base] something [conj] is	7
27	be something [conj] is	7
28	[adv] something [conj] is	6
29	something [conj] [pron] is	22
30	something [conj] [pers pn] is	16