Language Usage: This word ‘parliament’, like other collective nouns, is used as a singular and also as plural. For example, “The parliament has passed the bill.”, in this sentence, the word parliament is used as a singular noun — as one body — and so the verb ‘has’ which is a singular verb, is used; “The parliament have different opinions on the new bill.”, in this sentence, the word parliament is used as a plural noun referring to the members of the parliament — some members saying ‘yes’ and some saying ‘no’ and some others saying nothing for the time being, and so the verb ‘have’, which is a plural verb, is used.