¿Qué significa [I'm laying the groundwork.] ?

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"I'm laying the ground work" means that the person speaking is doing preliminary work, research, or connections with resources and people to get a job started.

For example, in building a house, laying the ground work involves getting an architect to make blueprints, hiring workers, and buying materials.

In a criminal case, laying the ground work involves collecting statements from involved parties and witnesses, collecting case files and evidence from police, taking photos of the scene of the crime, and so on.

In engineering a computer motherboard, laying the ground work involves looking at past designs to see what to improve, planning the time and man-hours required to design and build the circuits, getting technicians to draw up schematics, and assigning engineers, build techs, and quality assurance techs to the project.