Why is it not always necessary to include a subject pronoun before the verb in Spanish? Write your answer in English and give an example in Spanish.

Answer 1

the conjugation indicates which person is involved. If you say just
"hablo espanol" it is clear you mean "yo hablo expanol"

similarly, you'd say "lastime la mano" rather than "yo lastime la mano" because, who else's hand would you be hurting?