Breakdown of Wij hebben het park voor het milieu opgeruimd.
wij
we
hebben
to have
opruimen
to tidy up
voor
for (on behalf of)
Questions & Answers about Wij hebben het park voor het milieu opgeruimd.
How is the past participle opgeruimd formed here?
It comes from the separable verb opruimen (to clean up). To make the past participle of a separable verb, you inject -ge- right between the prefix (op-) and the verb root (ruim). Then you add the standard past participle ending (in this case, -d), resulting in opgeruimd.
Why does opgeruimd end in a -d instead of a -t?
We use the 't kofschip rule to decide. Take the verb part without the prefix (ruimen) and remove -en to get the root: ruim. The last letter is m. Because m is not one of the consonants in the word 't kofschip, the past participle gets a -d.
Why is opgeruimd at the very end of the sentence?
This is a classic Dutch word order rule. In the present perfect tense (using "have" + "cleaned"), the helping verb (hebben) takes the second position in the sentence. It then pushes the past participle (opgeruimd) all the way to the end, placing it after the objects and prepositional phrases (het park voor het milieu).
Is the word milieu a French word?