In the sentence we were hoping for an increase in revenue, the verb were is

a)
transitive

b)
intransitive

c)
linking

d)

In the sentence above, the verb "were" is a helping verb (d).

Explanation:

The verb were is a helping verb.  Helping verbs are used to help the main verb. Helping verbs that add meaning to the clause where they are being used are called auxliary verbs. They are used to express tense or to add emphasis. In this case, the verb to be has teamed up with the progressive form of the verb "hope" to come up with the past continous tense (were hoping).  

the answer is love is powerful hop this

the nation will get back everything that was lost

hope this