having flu
The Spanish phrase 'tener gripe' translates to 'having the flu' in English. It is a common term used in Spanish-speaking regions to describe the state of being sick with the influenza virus. The verb 'tener' means 'to have' and 'gripe' represents 'flu'. So literally, it means 'to have flu'. It is used to indicate that someone is ill with the symptoms associated with the flu, such as a fever, cough, or body aches.
I think I am going to have the flu, I feel very bad.
This sentence is expressing a possibility of the speaker becoming ill with the flu in the near future. The speaker is currently not feeling well which makes them think that they might have the flu.
I need to rest because I think I can have the flu.
In this example, the person is saying that they need to rest because they believe that they could potentially become ill with the flu. This implies that they are not yet certain, but they have a reason to believe so.
If you have fever, it's possible that you're starting to have the flu.
This sentence is informing someone that if they have a fever, it could be a sign of the onset of the flu. It's using the verb 'tener' (to have) to describe being in a state or condition (having a fever).