A simple example on using clones. You can generate a nice base for a pattern fill quickly with it.
Source Lazur URH
Remixed from a drawing that was uploaded to Pixabay by ractapopulous
Source Firkin
A white version of the very popular linen pattern.
Source Ant Ekşiler
Super subtle indeed, a medium gray pattern with tiny dots in a grid.
Source Designova
All good things come in threes, so I give you the third in my little concrete wall series.
Source Atle Mo
Prismatic Curved Diamond Pattern 5 No Background
Source GDJ
The image depicts polka dot seamless pattern.
Source Yamachem
Dark Tile-able Grunge Texture. I think this texture can be classified as grunge. It's free and seamless, as always.
Source V. Hartikainen
Spice up your next school project with this icon background.
Source Swetha
Medium gray fabric pattern with 45-degree lines going across.
Source Atle Mo
From a drawing in 'Kingsdene', Maria Fetherstonehaugh, 1878.
Source Firkin
A simple circle. That’s all it takes. This one is even transparent, for those who like that.
Source Saqib
To get the tile this is based on select the rectangle in Inkscape and use shift-alt-i
Source Firkin
The image depicts a seamless pattern of a Japanese family crest called "chidori" in Japanese .A chidori in Japanese means a plover in English.
Source Yamachem
Derived from elements found in a floral ornament drawing on Pixabay.
Source Firkin
Carbon fiber is never out of fashion, so here is one more style for you.
Source Alfred Lee
This is the remix of an OCAL clipart called "Art Nouveau ornament" uploaded by "microcosme".Thanks.This is a seamless pattern of an Art Nouveau ornament.
Source Yamachem
The edges of all the red objects line up either vertically or horizontally, but it doesn't appear so. Made from a square tile that can be got by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
Heavily remixed from a drawing in 'Barbara Leybourne; a story of eighty years ago', Sarah Hamer, 1889.
Source Firkin
This is lovely, just the right amount of subtle noise, lines and textures.
Source Richard Tabor
Made by distorting a simple pattern using the 'sin waves' plugin for Paint.net and vectorising in Vector Magic
Source Firkin
The image depicts a seamless pattern of a Japanese family crest called "chidori" in Japanese .A chidori in Japanese means a plover in English.
Source Yamachem