sneeze
The Italian word 'starnutire' is a verb that means 'to sneeze'. It is used in the same way as in English, to describe the involuntary expulsion of air from the nose and mouth due to irritation of the nasal passages. For example, 'Mi scusi, ho starnutito' means 'Excuse me, I sneezed'.
I had to sneeze during the meeting.
In this sentence, 'starnutire' is used to express an action that has happened in the past. The speaker is describing an event where they had to sneeze during a meeting.
If you keep sneezing, you should take medicine.
This example makes use of 'starnutire' to depict a continuous action in the present. The speaker is suggesting that if the person either persists or keeps sneezing, they should take some medication.
Impossible to sneeze with your eyes open.
Here, 'starnutire' is used within a general statement about the physiology of sneezing. The statement is that it's impossible to sneeze with your eyes open.