TinyProf
TinyProf
Join Waitlist

Determine the correct verb form (have vs. has) in a sentence with a delayed subject and evaluate conflicting grammatical rules. | Step-by-Step Solution

GrammarSubject-Verb Agreement
Explained on May 27, 2026
📚 Grade 9-12🟡 Medium⏱️ 10-15 min

Problem

Does the sentence 'There have or has been one crisis after another' use 'have' or 'has'? One AI suggests 'has' because the subject is singular, while another suggests 'have' because the meaning is plural. Determine which verb form is correct.

🎯 What You'll Learn

  • apply subject-verb agreement rules in complex sentence structures
  • distinguish between grammatical form and semantic meaning in verb choice
  • understand how delayed subjects affect verb conjugation

Prerequisites: understanding of subject and verb identification, basic knowledge of singular and plural verb forms

💡 Quick Summary

Great question — this falls into the category of subject-verb agreement, which can get surprisingly tricky when sentences don't follow a straightforward Subject → Verb order! Here's something worth thinking about: when a sentence begins with "there," is "there" actually the grammatical subject, or could it be playing a different role? Try mentally restructuring the sentence to see if you can uncover what the *true* subject really is. Once you've identified it, ask yourself whether that subject is singular or plural — and remember that modifying phrases attached to a noun don't always change its grammatical number. Think about how you'd handle a simpler version, like "one student after another was/were leaving," and let that guide your instincts here. You've got the tools to work this one out — give that sentence flip a try and see what you find!

Step-by-Step Explanation

Subject-Verb Agreement with "There" Sentences 🎓

---

1. What We're Solving

We need to figure out whether to use "have" or "has" in the sentence: > "There have/has been one crisis after another."

---

2. The Approach

The key to solving this is understanding how "there" sentences work. The word "there" looks like a subject, but it's actually a placeholder — a grammatical decoy! The real subject is hiding later in the sentence, and that's what the verb must agree with.

---

3. Step-by-Step Solution

Step 1: Identify the Grammatical Subject

The word "there" is an expletive (a filler word that delays the real subject).

To find the true subject, flip the sentence around: > "One crisis after another has/have been there."

Now the subject reveals itself: "one crisis after another"

---

Step 2: Analyze the Subject Closely

The phrase is "one crisis after another."

Key observations:

  • The grammatical head of this phrase is "one crisis"
  • "One" signals → singular
  • The phrase "after another" is a modifier — it describes a pattern, but it doesn't change the grammatical number of the subject
| Phrase Part | Role | Number | |---|---|---| | One crisis | Core subject | ✅ Singular | | after another | Prepositional modifier | Doesn't count! |

---

Step 3: Grammar vs. Meaning

The phrase does suggest multiple crises in meaning. However, this important distinction applies:

> 📌 Grammar follows grammatical structure, not implied meaning.

Compare these examples:

  • "One student after another was struggling."
  • "One car after another was damaged."
Native speakers consistently use the singular verb here, even though multiple students/cars are implied.

---

Step 4: Apply the Rule

Since the true subject is "one crisis" (singular), the verb must be singular too:

> ✅ "There has been one crisis after another."

---

4. The Answer

"Has" is correct! ✅

> "There has been one crisis after another."

The verb agrees with the grammatical subject ("one crisis"), not with the implied or conceptual meaning of the phrase.

---

5. Memory Tip 💡

"There" sentences — flip them to find the truth!"

Whenever you see a sentence starting with "there is/are" or "there has/have," mentally flip the sentence to reveal the real subject hiding at the back. Once you see it clearly, choosing the right verb becomes much easier!

> 🔄 "There has been one crisis..." > ➡️ "One crisis has been there..." → Singular → Has

⚠️ Common Mistakes to Avoid

  • choosing verb form based on the nearest noun rather than the true subject
  • confusing grammatical number with semantic/collective meaning
  • misidentifying which noun is the actual subject in inverted constructions

This explanation was generated by AI. While we work hard to be accurate, mistakes can happen! Always double-check important answers with your teacher or textbook.

Prof

Meet TinyProf

Your child's personal AI tutor that explains why, not just what. Snap a photo of any homework problem and get clear, step-by-step explanations that build real understanding.

  • Instant explanations — Just snap a photo of the problem
  • Guided learning — Socratic method helps kids discover answers
  • All subjects — Math, Science, English, History and more
  • Voice chat — Kids can talk through problems out loud

Trusted by parents who want their kids to actually learn, not just get answers.

Prof

TinyProf

📷 Problem detected:

Solve: 2x + 5 = 13

Step 1:

Subtract 5 from both sides...

Join our homework help community

Join thousands of students and parents helping each other with homework. Ask questions, share tips, and celebrate wins together.

Students & ParentsGet Help 24/7Free to Join
Join Discord Community

Need help with YOUR homework?

TinyProf explains problems step-by-step so you actually understand. Join our waitlist for early access!

👤
👤
👤
Join 500+ parents on the waitlist