Use the plural form Tuesdays to talk about every Tuesday or "Tuesdays" in general.
We typically use the plural (Tuesdays) to talk about every Tuesday or "Tuesdays" in general.
On Tuesdays, Robert always starts the day with a cup of coffee.
Alternatively, you can use the singular form (Tuesday) in some situations. For example, if you are asked:"Would you like to come to my costume party on Tuesday?" You can answer this:
I usually work on Tuesday.
I usually work on Tuesdays.
Both sentences are correct. Note that the example above contains an adverb of frequency ("usually") and a verb in the simple present, implying that we are referring to every Tuesday. Other common adverbs of frequency are: generally, normally, always, often, seldom, frequently, rarely, etc.
Amelia normally skips breakfast on Tuesdays/Tuesday.
When using this noun at the beginning of a sentence and talking about "Tuesdays" in general, we recommend the plural form (Tuesdays) to avoid ambiguity:
On Tuesdays, my girlfriend and I go for a refreshing morning run in the park.
When talking about a specific day, however, use the singular form (Tuesday).
On Tuesday, I went to the movies with my girlfriend.
She has been invited to a beach party on Tuesday.
She has been invited to a beach party on Tuesdays.
When using the rest of the days of the week, follow the same strategy:
