SN4 ""

No	Pattern	Freq
1	is [adv] [verb] [conj] the	628
2	is [adv] [vb pp] [conj] the	571
3	is [adv] [verb] that the	378
4	is [adv] [verb] that the	378
5	is [adv] [verb] [that] the	378
6	is [adv] [verb] [subord] the	134
7	is [adv] [verb] [coord] the	116
8	is [adv] [verb] and the	101
9	is [adv] [verb] and the	101
10	is generally [verb] [conj] the	51
11	is also [verb] [conj] the	47
12	is often [verb] [conj] the	45
13	is now [verb] [conj] the	45
14	is [adv] [verb] when the	42
15	is [adv] [verb] when the	42
16	is well [verb] [conj] the	41
17	is [adv] know [conj] the	40
18	is [adv] known [conj] the	40
19	is [adv] [v-ing] [conj] the	38
20	is widely [verb] [conj] the	32
21	is [adv] assume [conj] the	32
22	is [adv] assumed [conj] the	32
23	is [adv] [verb] if the	30
24	is [adv] [verb] if the	30
25	is sometimes [verb] [conj] the	28
26	is [adv] say [conj] the	27
27	is [adv] said [conj] the	23
28	is [adv] accepted [conj] the	23
29	is [adv] accept [conj] the	23
30	is only [verb] [conj] the	22