• Features
    • Personalization

      Transform your documents into captivating experiences
    • Integrations

      Connect Calaméo to your favorite applications
    • Studio

      Make publications that look like you
    • Conversion

      Generate valuable leads from your publications
    • Multi-Accounts

      Manage multiple accounts with the Multi-Accounts option
    • Share

      Disseminate your content everywhere, instantly
    • Statistics

      Analyze your audience's behavior
    • Subscribers

      Share exclusive content with your subscribers
    • Accessibility

      Publish accessible content
    All features
  • Pricing
  • Explorer
  • Resources
    • Blog

      Follow the latest news from Calaméo
    • Guided tour

      Pick up this document to master Calaméo
    • Help Center

      Find answers to your questions quickly
    • Calaméo Mag

      Explore our articles and refine your ideas
    • Case studies

      Discover how to achieve your goals
    • Developers

      Integrate Calameo into your workflow
    From the blog
Past Tense Verb To Be. Repaso (refuerzo y ampliación).
Read

Past Tense Verb To Be. Repaso (refuerzo y ampliación).

By José David Ocaña

Less

Read the publication
  • Related publications
  • Share
  • Embed
  • Add to favorites
  • Comments
Company
  • About
  • Pricing
  • Press
Features
  • Personalization
  • Conversion
  • Statistics
  • Integrations
  • Multi-accounts
  • Subscribers
  • Studio
  • Share
Resources
  • Blog
  • Calaméo Mag
  • Guided tour
  • Case study
  • Help Center
  • Developers
  • English
  • Safe mode
  • Contact us
  • Terms of use
  • Privacy
  • Copyright notices
  • Cookie settings