can
The word 'can' in French is 'peut'. It is a modal verb used to express ability, possibility, or permission. For example, 'Je peux nager' means 'I can swim'. It is important to note that 'peut' is used in the present tense, and its conjugation changes depending on the subject. For example, 'Tu peux' means 'You can', and 'Il/Elle peut' means 'He/She can'.
I cannot eat gluten.
This sentence demonstrates the use of 'peut' in the negation 'ne...pas', expressing the inability to do something. In this case, the speaker can't eat gluten.
She can swim very well.
This sentence uses 'peut' to express ability or possibility. Here, it's used to say that 'she' is able to swim very well.
Who can answer this question?
In this example, 'peut' is used in a question to denote the ability of anyone to answer a particular question. It is used in the interrogative form.