The misspelling "tch" can be corrected by using "ch" instead. Words like "witch" should be spelled "which" and "watch" should be spelled "watch". Keep an eye out for this common mistake and make the correction to ensure your writing is accurate.
CH The chemical symbol for the element carbon is "C" and the symbol for hydrogen is "H", but together they form "CH" which is known as the compound methane.
etch She used a sharp tool to etch her name into the glass window.