Breakdown of Мы успели взобраться на крышу до дождя.
дождь
rain
мы
we
на
on, at / by (transport) / to (a place) / to (in answer to)
успеть
to manage
Questions & Answers about Мы успели взобраться на крышу до дождя.
How does the prefix взо- fit into this lesson's topic of upward motion, and why does it have an extra 'о'?
The prefix вз- (or вс-) adds the meaning of upward movement, much like "up" in English. In взобраться, an extra -о- is added to make the word easier to pronounce because the root starts with two consonants (бр). Without it, you'd be forced to say a very difficult consonant cluster: взбр!
What is the root of the verb взобраться and why does it end in the reflexive -ся?
The core root here is the same one found in брать (to take). By combining the upward prefix взо- and the reflexive ending -ся (which often directs the action back at the subject), it literally forms the idea of "taking oneself up." In everyday Russian, it simply translates to "to climb up" or "to scramble up."
How exactly does the verb успели work in this context?
The perfective verb успеть means "to have enough time" or "to manage to do something in time." It is very commonly followed by another perfective verb in its infinitive form—like взобраться here—to emphasize that you successfully completed an action before time ran out (in this case, right before the rain started).
Why do we use the Accusative case for roof (на крышу) instead of the Prepositional case (на крыше)?