Occur age group after age group and repeat time after time

Should there by any dashes or hyphens here?

should it be like:

occur age-group after age-group and repeat time-after-time

???

No hyphens should be used in these constructions.

You can look up these words in a dictionary -- such as Dictionary.com -- to find the correct spelling/hyphenation.

Hyphenate age-group, but not any others.

so age-group or no ?

Let's check a dictionary.

http://dictionary.reference.com/browse/age%20group

I believe it makes a difference whether you use it as a noun or an adjective.

Examples:

Sandy attends a preschool with her age group.

The materials used in that school are age-group appropriate.

In this sentence, it would be more appropriate to use hyphens instead of dashes. Hyphens are used to join compound words or phrases, while dashes are used to set off additional information or add emphasis.

Therefore, the sentence should be written as:

"Occur age-group after age-group and repeat time-after-time."

To determine whether to use a hyphen or not, you can follow these general guidelines:

1. If two or more words are used together as a compound modifier before a noun, they should be hyphenated. For example, "time-consuming task" or "well-known artist."
2. If two adjectives are used together after a noun, they are not hyphenated. For example, "The task is time consuming" or "The artist is well known."

In the case of "age group" and "time after time," they are used as compound modifiers before a noun, so hyphens are appropriate.