keyword

open vs opened grammar

Monthly search volume and cost-per-click data for "open vs opened grammar" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=open+vs+opened+grammar&country=us" +--------------+------------------+ | volume | 10 | | cpc | $0 | | competition | 0.1 | | country | US | | updated | 2026-05-29 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
is opened	8,100	$15.45	10/20
it is opened	8,100	$4	6/20
is opened or is open	260	$0	7/20
open or opened	260	$0	6/20
is open or is opened	30	$0	7/20
was open or was opened	20	$0	10/20
door is open or opened	20	$0	8/20
keep it open or opened	20	$0	7/20
when to use open and opened	10	$0	13/20
i am opened or i am open	10	$0	8/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://app.seodata.dev/v1/keyword?q=open+vs+opened+grammar&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 1,000/month

Full API spec: llms.txt