You can check an English sentence for free on the open LetsWords practice pages. Choose a word or construction, write a sentence using it, and get feedback. The six examples below link to the relevant pages. The check goes beyond spelling: a correctly spelled word may express the wrong idea or require a different construction.
Take The delivery date depends from the supplier. Every word is recognisable, but the short preposition is wrong. Replacing it takes a moment. Understanding why you need on helps you get the next sentence right too.
LetsWords is a web vocabulary trainer. You write a sentence with a word you are learning; AI checks its use and the grammar, explains corrections, and suggests a more precise formulation. In regular practice, the word returns through spaced repetition. The open sentence check lets you see the feedback before registering.
1. The preposition after a verb: depends on
Before: The delivery date depends from the supplier.
After: The delivery date depends on the supplier.
In this meaning, depend takes on. A preposition that works in another language does not determine the English construction. Learn the combination depend on someone or something: a person, circumstance, or decision can determine what happens.
The corrected sentence still leaves something open. What does the supplier do that affects the delivery date? You can make that clear:
The delivery date depends on when the supplier sends the parts.
Now the sentence identifies the timing of the parts shipment. The preposition stays the same, but a clause follows it. A useful correction can involve more than replacing one word: it can name the factor that actually determines the result.
Open depend on: meaning and a free sentence check and write about a trip, a deadline, or a decision. Choose a situation whose meaning you can explain clearly.
2. Articles: why an advice does not work
Before: She gave me an advice about the interview.
After: She gave me some advice about the interview.
In its everyday meaning, advice is uncountable. It does not take an. If you mean one particular suggestion, use a piece of advice:
She gave me a useful piece of advice about the interview.
Here, a belongs to piece, so the construction works. Making the noun plural is not a solution: advices would not correct the original sentence.
There is another distinction to notice. Advice is a noun; advise is a verb. In She advised me to prepare a short introduction, the person recommends an action. Look at the word’s role in the sentence, as well as its meaning.
The give advice page includes a free sentence check. Try specifying what the advice was about rather than leaving the situation abstract.
3. Word order: where already belongs
Before: I have sent already the report.
More natural: I have already sent the report.
In a neutral statement, already usually goes between the auxiliary have and the main verb. Placing it inside sent the report separates the verb from its direct object and makes this wording less natural.
I’ve sent the report already is possible too. The final position can add emphasis, for example when you are responding to a repeated request. Correcting word order does not mean there is only one acceptable sentence. The tone and intended emphasis matter.
For an ordinary message to a colleague, I’ve already sent the report is enough. If you want to name the recipient, add to the client, keeping the adverb out of the verb–object combination.
The already vs yet page explains the contrast and lets you check a sentence for free. Write about work that is already finished or has not been completed yet.
4. Word choice: opportunity and possibility
Before: The internship gave me a possibility to work with engineers.
After: The internship gave me an opportunity to work with engineers.
The internship provided a valuable chance to do something, so opportunity fits. Possibility more often concerns something that may happen or may be feasible:
There is a possibility that the internship will be extended.
This sentence concerns a possible extension. Neither word is inherently better: they express different ideas.
The surrounding construction can also change. Compare an opportunity to work with the possibility of working. Substituting a near-synonym without checking its grammar can solve a word-choice problem while creating a new mistake.
Read opportunity vs possibility and use the free sentence check. First decide whether you mean an available chance or a possible development.
5. Tense: a result now or an event yesterday?
Before: I have already sent the report yesterday.
After: I sent the report yesterday.
The finished past time yesterday calls for the past simple here. The present perfect connects an action to the present and does not combine with yesterday in this construction.
A different message needs different wording:
I’ve already sent the report, so you can review it now.
Here, the current result matters: the report is available. It would be wrong to conclude that you should replace every present perfect with a past simple. Decide what you want to communicate: when something happened, or why its result matters now.
You can return to already vs yet for this check. Write a sentence with one clear time reference so the feedback can address how the tense, adverb, and intended meaning fit together.
6. Collocations: make progress
Before: We did a good progress on the project.
After: We made good progress on the project.
What the LetsWords feedback explains. This attempt needs two corrections:
- did → made: the combination is make progress;
- a good progress → good progress: progress is uncountable here, so it does not need an article.
The result, We made good progress on the project, keeps the intended meaning: the team moved forward. To be more precise, use steady progress if the work advanced at a consistent pace:
We made steady progress on the project, but the final review is still ahead.
Progress does not mean completion. If the project is finished, say We finished the project. Feedback should help you express the right fact, as well as choose the right combination of words.
Open make progress to check a sentence about work or study for free. This example lets you practise both the verb combination and the absence of an unnecessary article.
See what this kind of feedback finds in the words you are learning now.
Use the correction to get the next attempt right
After reading the correction, state its reason: “depend takes on”, “advice is uncountable here”, or “yesterday needs a past tense”. Then change one detail of the situation and write another sentence without copying the corrected line. This shows whether you can apply the construction independently.
In regular LetsWords vocabulary practice, you work on these problems with the words you are learning. Open a card with context, write a sentence, and see where a verb, preposition, or word form needs to change. When the word returns for review, recall it from its meaning in your native language and use it again. If you need an idea, the generator provides a sentence in your native language at your chosen difficulty for you to translate into English.
For another concrete demonstration, see how LetsWords vocabulary feedback works. If you are choosing between a grammar checker and a vocabulary trainer, see the comparison of the same actions in English grammar checker or vocabulary trainer.
Check a sentence now on a relevant page above. Then continue in LetsWords to make made progress, without the extra article, available when you write your next email. You recall the word, use it in a new context, and work through feedback on each attempt. Start with your learning goal and level, then try the feedback before paying.