Turn a noun or an adjective into a verb
English builds many verbs by adding a suffix to a noun or an adjective. Tap a base word, then tap the suffix that forges it. (Toca la base y luego el sufijo: no hay que arrastrar nada.)
Four suffixes, four meanings
Tap a suffix to see what it means, what kind of base it takes and the manual’s examples. (Los cuatro sufijos productivos del manual.)
What changes when the suffix arrives
Most bases keep their shape, but some lose a letter or two — and one is irregular. (Cambios de ortografía al formar el verbo.)
Do not use the adjective as a verb
Spanish keeps the suffix (modernizar, simplificar), so the English verb needs one too. Without it, the word is still an adjective. (El adjetivo pelón no es verbo.)
-ise is not an error, it is British. organize / organise, realize / realise: both are correct, but pick one spelling and be consistent. This course uses American -ize.
The five traps of Structure 7
What Spanish speakers usually write
👩🏫 For the teacher — how this page maps to the manual
- Explore is Structure 7 made manipulable: the forge pairs every base word of the section with its suffix (tap the base, tap the suffix — no drag and drop, so it works on a phone), the dial holds the four-suffix table with its meanings and example lists, and two cards cover the spelling changes and the adjectives that are not verbs. The special-cases selector is the manual’s five exceptions; the last card is the pitfall box plus the Homework Book error hunt.
- Build is productive: students assemble the twelve items of exercise A (stem + suffix), then transform — the verb forms of exercise B, the word-family table of exercise C and two rewrites from the mixed review — with validation and a model answer.
- Drill merges the quizzes into one graded engine (★ choose the suffix · ★★ spelling changes and the adjective-as-verb error · ★★★ word families, -ification, US/UK consistency) with a score and streak.
- Works offline. Reading/writing only — no audio.
Build the verb
Choose the suffix this base needs. The forge welds it and shows the rule — guess before you check.
Drill — one flow, three levels
★ choose the suffix · ★★ spelling and the adjective-as-verb error · ★★★ word families and consistency. Keep your streak alive. (Igual escalera que tu Cuaderno de tareas.)