SN4 ""

No	Pattern	Freq
1	an [adj] and [adv] [adj] [noun]	212
2	an [adj] and [adv] [adj] [noun sg]	210
3	an [adj] and [adv] [adj] [noun]	207
4	an [adj] and more [adj] [noun]	19
5	an [adj] and very [adj] [noun]	15
6	an [adj] and highly [adj] [noun]	10
7	an important and [adv] [adj] [noun]	8
8	an important and [adv] [adj] [noun]	8
9	an [adj] and rather [adj] [noun]	7
10	an alternative and [adv] [adj] [noun]	7
11	an alternative and [adv] [adj] [noun]	7
12	an [adj] and sometimes [adj] [noun]	6
13	an [adj] and potentially [adj] [noun]	6
14	an old and [adv] [adj] [noun]	6
15	an [adj] and often [adj] [noun]	6
16	an [adj -er] and [adv] [adj] [noun]	5
17	an [adj] and somewhat [adj] [noun]	5
18	an [adj] and [adv] [adj] form	5
19	an active and [adv] [adj] [noun]	5
20	an active and [adv] [adj] [noun]	5
21	an [adj] and [adv] [adj] form	5