"During our holiday in France, we went sightseeing in Paris."
It is one word.
My family and I went sightseeing in Europe this summer.
The word 'sightseeing' is a gerund, the present participle of a verb that functions as a noun. Gerunds have no plural form.
Have you lost your sense of sight? Get out of my sight!
'They are going sightseeing' or 'They are going to go sightseeing' are acceptable forms.
No, building is not a compound word.
yes it is a verb because it involves an action (seeing sights)
The contraction (not a compound word) is doesn't.
Upwards is a compound word.
There is no compound word.A compound word is a word like bus-stop.Husban is spelt like this husband
Upstairs is a compound word, so it is one word.