to spend a horrible cold
In German, the phrase 'eine schreckliche Erkältung haben' is used to express the idea of having a terrible cold. The word 'schreckliche' means 'terrible' or 'horrible', and 'Erkältung' is the German word for 'cold'. The verb 'haben' is used to indicate possession or a state of being, similar to 'to have' in English.
I think I have a terrible cold.
In this sentence, the speaker is expressing that they believe they are suffering from a severe cold. The phrase 'eine schreckliche Erkältung haben' is used here to communicate the intensity of the cold.
She looks like she has a terrible cold.
In this example, the speaker is observing that someone (in this case, a female individual denoted by 'Sie') appears to be suffering from a severe cold. The phrase 'eine schreckliche Erkältung haben' is used here to describe the observed condition.
After the long walk in the rain, I could have a terrible cold now.
This sentence expresses that the speaker believes they might have contracted a severe cold (expressed by 'eine schreckliche Erkältung haben') as a result of prolonged exposure to rain. It suggests the connection between getting wet in the rain and falling sick.