Final answer:
Affirmative familiar commands in French that incorporate 'y' and 'en' are used to issue instructions with the aforementioned pronouns for conciseness and completeness of the command in informal situations. They follow the verb in the imperative mood and are connected with a hyphen for clarity and ease of pronunciation.
Step-by-step explanation:
Affirmative familiar commands that use both y and en are used in French to provide instructions or commands in a casual or familiar context while including the pronouns y (there) and en (some, any, of it, of them) to replace phrases introduced by certain prepositions or the partitive article, respectively. When constructing such commands, the pronouns y and en are positioned after the verb and connected to it with a hyphen. This grammatical structure emphasizes how commands can be concise while still conveying a complete thought.
For example, the command 'Va' (Go) can be made more specific by adding y and en: 'Va-y' (Go there) or 'Prends-en' (Take some). However, it's crucial to remember when forming these commands that the verb must be in the imperative mood, which is used for giving orders or advice. Additionally, when the verb ends with a vowel and is followed by the pronoun y or en, a connecting '-e' is added for ease of pronunciation if the command is addressing someone informally, as in 'Donne-en' (Give some of it).