Business documents: order form, invoice, receipt, delivery note
“Invoice” and “receipt” are easy to mix up: an invoice asks for payment, and a receipt shows that the payment was made. The “p” in “receipt” is silent.
- “order form”, the customer’s request for products: “The customer sent an order form.”
- “invoice”, a request for payment: “The invoice has the wrong total.”
- “receipt”, proof that the customer paid: “Keep the receipt.”
- “delivery note”, the list that travels with the goods: “Check the boxes against the delivery note.”
What went wrong: was, were and -ed verbs
Use “was” with I, he, she, it and one thing, and “were” with you, we, they and plural nouns: “The order was correct.”, “The boxes were late.” Regular verbs add -ed: checked, printed, called. Verbs ending in -e add only -d (apologized), and a consonant + y becomes -ied (copied).
Say -ed as an extra syllable only after a t or d sound: “printed” and “corrected” have it; “checked” and “called” do not.
- “The delivery note was wrong.”
- “The chairs were in the warehouse.”
- “I entered twenty chairs.”
Questions and negatives: did and didn’t
In questions and negatives, “did” carries the past, so the main verb stays in its base form. With “be”, you don’t need “did”.
- “Did you check the stock?” – “Yes, I did.”
- “We didn’t send a new invoice.”
- “Was the delivery note correct?” – “No, it wasn’t.”
Reporting a problem to a colleague
Before you write to the customer, agree the fix with a colleague: name the problem, say what you need to do and promise an update with a time. In this conversation, Owen reports a wrong delivery note and Maya agrees to fix it. “By three” means “not later than three o’clock”.
- “We’ve got a problem with order 612.”
- “We need to correct the delivery note.”
- “I’ll call the customer.”
Owen We've got a problem with order 612. The delivery note is wrong.
Maya I'm sorry about that. We need to correct it.
Owen Can we send a new note today?
Maya Yes. I'll correct it and call the customer.
Owen That would be great. Thanks a lot.
Maya No problem. I'll let you know by three.
Apologizing and responding
One short apology is enough. Use “sorry about” or “sorry for” with a noun, stress SORry, MIStake and deLAY, and let your voice fall at the end. To respond, accept the apology and thank the person.
- “I’m sorry about the mistake.”
- “I’m very sorry for the delay.”
- “That’s OK.”
- “Don’t worry. Thanks for fixing it.”
A four-part problem email
Keep three things apart: what was wrong, what you already did and what happens next. A subject line like “Problem” tells the reader nothing, so name the order and the result.
- 1. Subject line: “Order 612 – corrected delivery note”
- 2. Apology and problem: “Hello Ana, I’m sorry about the mistake on the delivery note. It said 20 chairs, but your order was for 12.”
- 3. What you did: “I corrected the quantity and attached the new note.”
- 4. Next step and close: “The chairs will arrive before Friday. Best, Maya”
Common mistakes
These mistakes are easy to notice:
- “I correct the note yesterday.” A finished action needs the past: “I corrected the note.”
- “We didn’t sent it.”, “Did you checked it?” After “did” and “didn’t”, use the base verb.
- “The boxes was late.” Plural nouns take “were”.
- “I will correct the note.” when it’s already done. Say “I corrected the note.”
- “Check-ed” with two syllables. “Checked” has one and ends in a /t/ sound.
A 10-minute daily practice routine
Practise out loud, in the same order each day.
- 2 minutes: say each document word in a sentence.
- 3 minutes: write five sentences about yesterday at work with was, were, -ed verbs and didn’t.
- 3 minutes: play the conversation, repeat each line, then change the order number and the time.
- 2 minutes: write a four-part email about a real or invented mistake.
What comes next
Next, practise a follow-up email after meeting a new business contact. At A2–B1, you record customer complaints with an owner and a follow-up date.

