Past Tense For Is And Are

The Verbs You Probably Already Know But Mess Up Anyway

The past tense of "is" and "are" is "was" and "were". That is the short version. The long version involves singular subjects taking "was" and plural subjects taking "were", with the notable exception of the second person, where "you" always pairs with "were" regardless of whether you are talking to one person or a group of people. I have graded enough student essays to know this pattern trips people up repeatedly, and it is not because the rule itself is complicated. I spent several years working with ESL materials, and one edge case came up constantly that never really got covered properly. People write things like "If I was you" when they mean "If I were you". The subjunctive mood requires "were" here because you are expressing a hypothetical situation that is not true. This is the one place where "was" sounds natural in casual speech but is grammatically wrong on paper. I started telling students to treat "If I was" as an automatic red flag whenever they see it in formal writing. In their first semester after I started doing that, the rate of subjunctive errors dropped by maybe sixty percent. It is not a magic fix, but it forces them to actually think about what they are writing instead of relying on what sounds right. The subjunctive is not the only trap. Contractions are where most native speakers and advanced learners both stumble. Nobody says "I was not" in casual conversation. They say "I wasn't". But "wasn't" only contracts with "I", "he", "she", and "it". You cannot contract "were not" down to a single word in standard English. "Weren't" exists, and it works fine with "you", "we", and "they", but there is no common contraction for "was not were not" because the language simply does not have one. People sometimes invent "wasn't were not" when they are typing fast and autocorrect is not helping. This is one of those things that looks obvious in hindsight but is easy to miss when you are editing at speed.

Here is the core structure without the preamble. "Was" goes with singular first and third person subjects: I was, he was, she was, it was, the report was, the data was. "Were" goes with plural subjects and the second person: you were, we were, they were, the reports were, the files were. That is the basic distribution. It covers about eighty-five percent of real-world usage. The remaining fifteen percent is where subjunctives, conditionals, and informal speech start bending the rules. One thing that rarely gets explained clearly is that "there" and "it" are not inherently singular or plural. They are placeholders. You decide the verb by looking at what comes after. "There was a problem" is correct because "a problem" is singular. "There were several problems" is correct because "several problems" is plural. I have seen native speakers write "there was many issues" because they read the sentence too quickly and let "there" dictate the verb instead of the actual subject. This happens in business emails all the time. It is one of those errors that makes a resume look worse than it should without any grammar being fundamentally broken. The past perfect tense adds another layer. "Had been" works as the past perfect for both "was" and "were". This form shows that one past event happened before another past event. "By the time the audit started, the errors had been present for three weeks." This construction is common in professional writing and technical documentation but gets skipped entirely in most basic grammar guides because it is categorized separately from simple past tense. If you are writing any kind of report, you will use "had been" at least occasionally, and mixing it up with "was" or "were" will make your timeline confusing.

Here is a practical way to check your work. Run through every instance of "was" or "were" in your text and ask whether the true subject is singular or plural. If the sentence uses "there is/there are" structure, ignore "there" and look at the noun that follows. If the sentence starts with "if" or "wish" and describes something contrary to fact, use "were" regardless of the subject. These three checks catch the vast majority of mistakes. There is a limitation worth noting. The subjunctive rule is fading in everyday spoken English. "If I was you" is extremely common in informal speech, and many style guides now accept it as acceptable in casual contexts. If you are writing a text message, a chat, or an email to a coworker you know well, "was" is fine. If you are writing a formal document, a cover letter, or anything that will be reviewed by someone who cares about precision, stick with "were". The line between formal and informal has blurred considerably over the last decade, which means the old rules sometimes feel unnecessarily rigid. That is fine. The rules are still the rules when it matters.

Quick Reference for Everyday Use

Singular subjects: I was, he was, she was, it was, one item was Plural subjects: we were, you were, they were, multiple items were Hypotheticals: If I were, if she were, I wish it were

Past perfect: had been (works for all subjects) Common error: "there was" with a plural noun afterward — change to "there were" The past tense of "is" and "are" is not complicated in theory. It becomes complicated in practice because people rush, because contractions blur the lines, and because informal speech has relaxed rules that do not apply in writing. Once you learn to slow down and identify the real subject, most errors disappear. The ones that remain are usually just typos.