G
Grammify
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Practice & Reference

Practice Lab

Everything the rest of this section explains, on real sentences. Pick one below and work through the four exercises: sort every word into a broad category, give it its precise tag, label every role, and rebuild the dependency tree edge by edge.

What you’ll learn

  • Sort every word into one of the seventeen coarse part-of-speech categories
  • Assign fine-grained Penn Treebank tags to every word in a sentence
  • Label grammatical roles by dragging across the words they cover
  • Identify every head-and-dependent pair in the sentence
  • Read your accuracy and elapsed time for each attempt

How the exercises work

All four follow the same rhythm: choose a label, then apply it. Pick a button from the palette, click (or drag across) the words it describes, and the exercise tells you immediately whether it fits.

A palette button is not used up by one correct answer. Most labels apply to several words in a sentence, so each button carries a count — it stays available until its last occurrence is found, then flips to showing the total so the palette still reads as a legend.

Every run tracks attempts, accuracy and elapsed time. The clock starts on your first interaction, not when the page loads, and it pauses whenever you switch tabs or leave for another topic. Skipping to the answer marks the run skipped rather than complete — an answer you revealed should not count as one you found.

Choose a sentence

These are the sentences published for everyone to read. The list grows as more analyses are verified, and the badges tell you what each one will demand — a compound-complex sentence has far more structure to find than a simple one, so start near the top of the difficulty range you want.

This sentence is published — see its full analysis in the gallery →

Parts of speech

Give every word its coarse Universal Dependencies category.

Words 0/9Attempts 0Correct 0Time 0:00

Sentence — select a part of speech below, then click the word(s) it applies to

In the evening, Joe went out for a ride.

If an exercise is not making sense

Each exercise has a page behind it. If the tag palette is unfamiliar, read Parts of Speech. If you are unsure what a role name means or how the diagram is being built, read Reed-Kellogg Diagrams. If the heads and dependents feel arbitrary, read Dependency Parsing — it explains what the arrows mean and why they point the way they do.