Breakdown of Við þurfum að smella á slæmu tenglana.
við
we
að
to (infinitive marker)
á
onto / on / in (static location) / on (a day of the week)
þurfa
to need
Questions & Answers about Við þurfum að smella á slæmu tenglana.
Why is the adjective slæmu used here instead of slæma or slæmir?
Because the noun it describes is definite ('the links'), the adjective must use the weak declension. In the plural, the weak form of an adjective is extremely simple: it always ends in -u for all genders and all cases. So slæmur becomes slæmu.
What is the base form of the word tenglana?
The dictionary form is tengill, which is a masculine noun meaning a web link. To say 'the links' in the accusative case, we first make the plural tengla, and then attach the definite article to get tenglana.
Why are slæmu tenglana in the accusative case here?
The preposition á can be followed by either the accusative or dative case. When used with the verb smella (to click), it indicates a directed action toward a target, which triggers the accusative case.
Why do we have að before smella?
The verb þurfa (to need) pairs with another verb in the infinitive. In Icelandic, the word að acts as the infinitive marker, serving the exact same role as the word 'to' in the English phrase 'need to click'.