1. in Spanish, conjugated verbs have different endings to match each subject, but in English present tense verbs only have two or three verb forms
2. in Spanish singular subjects have one verb conjugation and plural subjects have another conjugation, but in English there is one conjugation for the third person singular and one conjugation for all other subjects
3. in Spanish verbs must be accompanied by the subject but in English it is possible to leave off the subject of a sentence
4. in Spanish singular subjects are one conjugation and plural subjects have another but in English each subject pronoun has its own unique verb form
