string together - Phrases/Idioms
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Compose, assemble, as in There's more to devising an effective slogan than stringing together some words. This expression alludes to threading beads on a string. [First half of 1800s]