In English, adjectives either come alone at the end of a sentence or BEFORE a noun.
That house is GOOD. It's a GOOD house.

English adjectives have only one form.
This book is GOOD. These books are GOOD.
It's a GOOD book. They're GOOD books....

hay·wire

/?h??w?(?)r/

adjective

INFORMAL

erratic; out of control; not working properly.

"The computer has gone haywire."

...

As you know, the past tense forms of the verb TO BE are WAS (for I, he, she, it) and WERE (for you, we, they).

We were there.
John was here.
It was raining.
I was a student.

However, after IF (meaning "in case"), we must use WE...

One thing you’ll notice when you’re in Canada is that Canadians call a multi-storey parking a “parkade.”...