"Máme před sebou mnoho práce."

Translation: We have a lot of work ahead of us.

[DarkWolverine18]

we have a lot of to do ahead of us?

[VladaFu]

I'd recommend to translate the word "work" directly. Translations should be as close as reasonably possible without being unnatural.

[A477]

před sebou as in seeing it infront of us, or as in the next days infront of us?

[VladaFu]

Normally you mean it figuratively (next days), but a literal meaning is also possible if unusual.