Neither Fahima nor her friends _______ at the party last night.

• Neither .... nor দ্বারা দুইটা Noun/Pronoun যুক্ত হলে শেষেরটা অনুযায়ী verb বসে।
- যেহেতু শেষের অংশে  her friends – plural noun আছে, তাই এখানে ‍are/were হবে।
- last night থাকায় এখানে were হবে। 
- Complete sentence: Neither Fahima nor her friends were at the party last night.
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• [Either/neither] + noun + [or/nor] + singular noun + singular verb.
- Neither the salesmen nor the marketing manager is in favor of the system.

• [Either/neither] + noun + [or/nor] + plural noun + plural verb.
- Neither John nor his friends are going to the beach today.

• Either and neither are singular if they are not used with or and nor.
- If either of you takes a vacation now, we will not be able to finish the work.