English has 3 grammatical cases, 12 tenses, and 1 gender (natural gender).

But only pronouns retain those 3 grammatical cases, for nouns is only 1, or 2 if you count the genitive. Same for verbs, there are only 3 real tenses (present, past/participle and gerund), every other tense is formed with auxiliary verbs. Also, no verb-subject agreement.

I speak Spanish and compared to Romance languages, English grammar is so much simpler ;)