Can the government take private property for public use under the Constitution?

Answer 1

The government can take property through Eminent Domain, read below.

Eminent domain is the inherent power of the state to seize a citizen's private property, expropriate property, or seize a citizen's rights in property with due monetary compensation, but without the owner's consent. The property is taken either for government use or by delegation to third parties who will devote it to public or civic use or, in some cases, economic development. The most common uses of property taken by eminent domain are for public utilities, highways, and railroads, however it may also be taken for reasons of public safety, such as in the case of Centralia, Pennsylvania. Some jurisdictions require that the government body offer to purchase the property before resorting to the use of eminent domain. The legal doctrine of eminent domain, like the doctrine of seizure of contraband, allows expropriation of property within the existing system of law.

The above was taken from the Wikipedia because they can explain it better than I could.