SN4 ""

No	Pattern	Freq
1	[noun sg] is [adv] than	151
2	[noun sg] is less [subord]	86
3	[noun sg] is [adv] as	80
4	[noun sg] is more [subord]	62
5	[noun sg] is [adv] if	20
6	[noun sg] is there [subord]	18
7	[noun sg] is all [subord]	17
8	[noun sg] is [adv] because	17
9	[noun sg] is [adv] when	17
10	[noun sg] is [adv] but	16
11	[noun sg] is just [subord]	14
12	[noun sg] is [adv] whether	11
13	[noun sg] is [adv] considering	10
14	[noun sg] is now [subord]	10
15	[noun sg] is best [subord]	9
16	[noun sg] is also [subord]	7
17	system is [adv] [subord]	7
18	[noun sg] is still [subord]	7
19	[noun sg] is exactly [subord]	6
20	time is [adv] [subord]	5
21	[noun sg] is though [subord]	5
22	question is [adv] [subord]	5
23	[noun sg] is rather [subord]	5
24	life is [adv] [subord]	5