The “yo” form of any verb always ends in the letter “a”
Answer: En el pretérito imperfecto de indicativo.
Translation: in the imperfect indicative
Explanation: because all Spanish verbs end in the letter "a" with the "yo" form in the imperfect indicative.
The -ar verbs end with -aba
Example : verb "amar" => yo amaba
The -er verbs and the -ir verbs end with -ía
Examples: verb "temer" => yo temía , verb "vivir" => yo vivía
