French Phrase
Qu'est‑ce qui semble être le problème principal ?
Meaning
This question asks the listener to identify what appears to be the most important issue at hand. It is often used when diagnosing a situation, troubleshooting a device, or discussing a project’s challenges.
When to use
Use it in professional or academic settings when you want to pinpoint the chief difficulty without assuming you already know the answer. It works well in meetings, tech support calls, or classroom discussions about problem‑solving.
✦Grammar Breakdown
Qu'est-cequisembleêtreleproblèmeprincipal?
Qu'est‑ce qui
The fixed interrogative phrase 'Qu'est‑ce qui' introduces a subject‑question; it literally means 'what is it that' and is used when the questioned element is the subject of the verb.
sembler + infinitif
The verb 'sembler' (to seem) is followed by an infinitive (here 'être') to express an impression or appearance.
le problème principal
A noun phrase with the definite article 'le' and the adjective 'principal' placed after the noun, which is the normal order in French.
liaison and elision
The apostrophe in 'Qu'' is an elision of 'que' before the vowel of 'est'. A liaison occurs between 'semble' and 'être' (/sɑ̃bl‿ɛtʁ/).
🗨In Conversation
Nous avons plusieurs dysfonctionnements, mais qu'est‑ce qui semble être le problème principal ?
We have several malfunctions, but what seems to be the main problem?
Il me semble que c'est le serveur qui ne répond plus.
It seems to me that the server is not responding.
✕Common Mistakes
Qu'est‑ce que semble être le problème principal ?
Use 'Qu'est‑ce qui' when the questioned element is the subject of the verb. 'Qu'est‑ce que' introduces an object‑question and would be grammatically incorrect here.
Qu'est‑ce qui semble être le problème principale ?
Adjectives agree in gender and number with the noun they modify. 'Problème' is masculine, so the adjective must be 'principal', not 'principale'.
Qu'est‑ce qui semble, être le problème principal ?
Do not separate 'sembler' and its infinitive with a comma or extra verb; the correct construction is 'sembler + infinitif' without a pause.
↔Alternatives
Quel est le problème principal ?
What is the main problem?
Quelle est la cause principale ?
What is the main cause?
Quel est le principal souci ?
What is the main issue?
Cultural Tip
In French, 'Qu'est‑ce qui' is the neutral, slightly formal way to ask a subject‑question. In very informal speech, people may drop the 'ce' and say 'Qu'est‑ce que' (which actually introduces an object‑question) – avoid that when you need the subject, as in this sentence. Also, placing the adjective after the noun ('problème principal') is the standard order; moving it before ('principal problème') would sound literary or emphatic.