Grammar Test is a WordPress plugin useful to create grammar exercises and examinations
The Hreflang Flags plugin automatically generates flags based on your implementation of hreflang
The Hreflang Manager plugin allows you to implement hreflang in WordPress, so you can indicate to the search engines the specific languages or geo-targets of the different versions of your pages.
WPML String Translation allows you to translate texts that are not in posts, pages and taxonomy. This includes the site’s tagline, general texts in admin screens, widget titles and many other texts.
WPML makes it easy to build multilingual sites and run them. It’s powerful enough for corporate sites, yet simple for blogs.
Go multilingual in a simple and efficient way. Keep writing posts, creating categories and post tags as usual while defining the languages all at once.