Breakdown of Мы решили продлить аренду на два месяца.
мы
we
два
two
месяц
month
решить
to decide (perfective)
Questions & Answers about Мы решили продлить аренду на два месяца.
Why do we use на два месяца instead of just saying два месяца?
We use на + Accusative to show the intended duration of an action's result. They extended the lease so that the result lasts for two extra months. If you just used the Accusative два месяца without на, it would mean the actual process of extending the paperwork took two whole months to complete!
What case is два месяца in after на?
The preposition на here requires the Accusative case. Because месяц is an inanimate masculine noun, the Accusative form of два looks identical to the Nominative. Remember that the numbers 2, 3, and 4 must be followed by the Genitive singular, which is why we use месяца here instead of a plural form.
Why is the perfective verb продлить used after решили?
When you decide to do a specific, one-time, completed action (like extending this specific lease once), you use the perfective aspect after verbs like решить (to decide). If they had decided to start a regular habit of extending leases, you would use the imperfective.
How can I easily remember the word продлить (to extend)?
It helps to spot the root! It is closely related to the A1 adjective длинный (long) and the verb длиться (to last). The prefix про- here adds the sense of carrying an action forward through time, literally making the lease 'longer'.