Can i put braces even i have denture?

Depends on Denture: That depends on the type of denture you have. If you have a "complete" denture, meaning all your teeth in that arch are missing, then obviously braces are not an option, since they can only move natural teeth. If, however, you have a "partial" denture, combined with a few remaining natural teeth, then those few natural teeth can still be moved with braces, assuming they're healthy. Ask a dentist.

Depends: To repeat my answer. The word denture implies all teeth in an arch are replaced with a removable device. Teeth in an opposing arch can be moved with braces if it is though beneficial.

Braces are for teeth: You can only use braces on your natural teeth. If you move them, it is usually necessary to replace existing removable partial dentures to fit the new tooth position.

Depends: If you have natural teeth that are not periodontally compromised (severe gum recession & bone loss) then those teeth may be orthodontically moved, if treatment appropriate. Though, full dentures themselves cannot have braces. If you have full dentures restoring the upper and lower then braces are not for you. See you dentist for evaluation.