If you need a bit of help with grammar, I am publishing A Quick Grammar Guide online.

You can access it by clicking on this link.

It is still a work in progress, but I guarantee it will be helpful!

Already available:

Adjectives and Adverbs

Transitive and Intransitive Verbs

Present Tenses of Verbs

Past and Future Tenses of Verbs

Materials for this guide were developed for seminar-workshops I designed and delivered as Cynthia Lapeña, Cynthia Rueda, Cindy Rueda, Cynthia Amador, Cindy Amador, and Cindy Lapeña. To simplify things, I am now simply using Cindy Lapeña.