You should go for _____ early morning walk.

Concept

The choice between the indefinite articles “a” and “an” depends on the sound that begins the immediately following word, not simply on its first letter. Use “a” before a consonant sound and “an” before a vowel sound. A singular count noun used non-specifically normally takes an indefinite article.

Application

1. Identify the word immediately after the blank: “early”.

2. Pronounce it: /ˈɜːr.li/. Its initial sound /ɜː/ is a vowel sound.

3. Apply the article rule: a vowel sound takes “an”, giving “an early morning walk”.

4. The sentence offers general advice rather than identifying one particular walk, so the indefinite form is appropriate.

Cross-check / Contrast

• “a” belongs before a consonant sound, as in “a university”, where the first sound is /j/. It does not pair with the vowel sound at the start of “early”.

• “the” identifies a particular walk already known from context, whereas this sentence refers to the activity generally.

• The completed phrase “an early morning walk” follows the same sound-based rule as “an hour”, where the written first letter is less important than the opening vowel sound.

Result: You should go for an early morning walk.