'Coupled' in the Bible

Five curtains shall be coupled together one to another; and the other five curtains shall be coupled one to another.

And he coupled five curtains one to another: and the other five curtains he coupled one to another.

And he made fifty clasps of gold, and coupled the curtains one to another with the clasps: so the tabernacle was one.

And he coupled five curtains by themselves, and six curtains by themselves.