Is there a way to make 3d animations?

I'm trying to make a 3d animation for my character in 3D but I don't know if that's possible

What do you mean? In Construct 3?

It's a 2D engine. 3D is faked/pseudo 3D. So the answer is no.

Also, you wouldn't ever use a game engine to make an animation really. You're better off using a 3D package such as Blender to make models and animations.

You could make a sprite sheet from a 3d model with animations already created. But like Psynaptik mentioned, this would be handled in another software. Blender is the best free option at the moment, so I will second that option.

Look at how games such as the Donkey Kong Country series were made. They basically made 3D models, animated them, then took still images for each frame of the sprite's animation.

you probably can do minecraft-like animations if you use mesh distortion to make shapes, then you can rotate them in any way you want