Triquetra - (Simple Triquetra) by Margaret Bremner, CZT / Enthusiastic Artist). Steps 1-4 are done in pencil. Don't be wimpy with the arcs. They need to really swoop towards the third dot. Step 5 start using ink. The short ink lines are to indicate to yourself what goes over and what goes under. I've drawn them bolder. The lines you draw later to connect everything are in dotted red. Step 6 shows the Triquetra with the pencil string in the middle of the lines.