SN4 ""

No	Pattern	Freq
1	[verb] is [adv]	2529
2	[verb] is [not/n't]	1177
3	[verb] is not	1177
4	[vb pp] is [adv]	1148
5	[vb base] is [adv]	879
6	[verb] is not	828
7	[v-ing] is [adv]	676
8	[to-vb] is [adv]	490
9	[vb -s] is [adv]	445
10	[verb] is n't	349
11	[vb infin] is [adv]	284
12	do is [adv]	283
13	[verb] is [Wh adv]	268
14	think is [adv]	159
15	say is [adv]	149
16	[verb] is very	147
17	[verb] is very	147
18	think is [adv]	131
19	[verb] is just	130
20	[verb] is just	130
21	[vb past] is [adv]	112
22	[verb] is how	103
23	[verb] is how	103
24	know is [adv]	92
25	[verb] is also	89
26	[verb] is also	89
27	[verb] is more	86
28	[verb] is more	86
29	[verb] is often	82
30	[verb] is often	82