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All they did was is the most popular phrase on the web.

All they did were 1198,000 results on the web	All they did was 1567,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
They had the whole house to themselves last night, and all they did were chores.	Really all they did was they gave it a fresh coat of bright paint, a gourmet grocery, and they put up a restaurant in the old post office. About all they did was take out a couple of hedges. But what he didn't tell you is... all they did was put Nick on a plane to Seattle. No, I mean, all the other doctors, all they did was obsess on the cancer, the treatment, the damage. All they did was tell lies. All they did was give birth to me. All they did was give me his effects. All they did was rule out a heart attack.

All they did were

1198,000 results on the web

All they did was

1567,000 results on the web

More popular!

They had the whole house to themselves last night, and all they did were chores.

Really all they did was they gave it a fresh coat of bright paint, a gourmet grocery, and they put up a restaurant in the old post office.
About all they did was take out a couple of hedges.
But what he didn't tell you is... all they did was put Nick on a plane to Seattle.
No, I mean, all the other doctors, all they did was obsess on the cancer, the treatment, the damage.
All they did was tell lies.
All they did was give birth to me.
All they did was give me his effects.
All they did was rule out a heart attack.