SN4 ""

No	Pattern	Freq
1	[det] is [adv] [verb]	2386
2	this is [adv] [verb]	1830
3	this is [adv] [verb]	1830
4	[adj] is [adv] [verb]	1815
5	[adj] is [adv] [vb pp]	1798
6	[adj] is [not/n't] [verb]	1100
7	[adj] is not [verb]	1100
8	[adj] is not [verb]	989
9	[adj] is [adv] [to-vb]	719
10	[adj] is [adv] [v-ing]	416
11	[adj] is [adv] say	394
12	that is [adv] [verb]	390
13	that is [adv] [verb]	390
14	[adj] is [adv] to say	365
15	[adj] is [adv] [verb]	303
16	[num] is [adv] [verb]	228
17	[adj] is [adv] do	139
18	[adj] is [adv] done	115
19	[adj] is now [verb]	112
20	[adj] is now [verb]	112
21	[adj] is n't [verb]	111
22	[adj] is also [verb]	98
23	[adj] is often [verb]	98
24	[adj] is often [verb]	98
25	[adj] is also [verb]	98
26	[adj] is usually [verb]	97
27	[adj] is usually [verb]	97
28	[adj] is [adv] go	88
29	[adj] is [adv] going	83
30	[adj] is best [verb]	80