Breakdown of Ég mun hafa yfirfarið kostnaðaráætlunina fyrir föstudaginn.
ég
I
hafa
to have
föstudagur
Friday
munu
will
fyrir
before (time)
yfirfara
to review
kostnaðaráætlunin
the cost estimate
Questions & Answers about Ég mun hafa yfirfarið kostnaðaráætlunina fyrir föstudaginn.
Why is the verb form yfirfarið used here instead of agreeing with the feminine object?
In Icelandic, perfect tenses always use the supine form of the main verb, which looks identical to the neuter singular nominative past participle. In the future perfect structure (mun + hafa + supine), yfirfarið remains frozen in this form and does not change to agree with the feminine object kostnaðaráætlunina or the subject.
Could I use the separable phrase fara yfir instead of the single verb yfirfara in this sentence?
What case is kostnaðaráætlunina in, and how does that long compound word break down?
It is in the accusative case because it is the direct object of yfirfara. It breaks down into kostnaður (cost) + áætlun (estimate/plan) + -ina (the feminine singular accusative definite article). Notice how the -ur ending of kostnaður is dropped and replaced with an -ar connecting suffix to link the two nouns.
The preposition fyrir can take different cases. Why does it take the accusative (föstudaginn) here?
When fyrir is used in a temporal sense to mean 'before' a specific time or deadline, it governs the accusative case. If it were governing the dative, it would mean 'ago', so fyrir föstudegi would mean 'a Friday ago,' which doesn't fit the future tense of this sentence.
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