When is U a consonant?

The letter "U" is considered a consonant when it comes before a vowel in the same syllable. This is known as the "consonantal U".

Here are some examples:

* Under

* Unite

* Unusual

* Up

* Use

In these words, the "U" makes a "y" sound and acts like a consonant, forming a syllable with the following vowel.

However, "U" is typically a vowel when it appears at the beginning of a word or syllable, or when it follows another vowel.

For example:

* Upstairs

* Uncle

* Umbrella

* Unique

In these cases, the "U" makes its typical vowel sound.

It's important to remember that pronunciation can be tricky, and there are always exceptions to the rules.