SimpleQuery tries to find all word forms including inflected variants (if the corpus is lemmatized). It does not perform lemmatization, therefore, if you input inflected word, it will find only case-insensitive variants.

If you enter save, the Sketch Engine will generate a concordance of all of the following:

• save-saved-saves-saving (the lemma of the verb)
• save-saves (the lemma of the noun - what goalkeepers make)
• save (preposition: everyone was killed save Franco himself)

the same result is returned for "Save", "SAVE" or "sAvE".

However, if you input "saved" or "SaVeD" it will return only:

• saved (past tense of the verb)
• saved (the adjective - prevented from injury)

If you enter open window, the Sketch Engine will generate a concordance of all of the following:

• open window
• open-ing/s/ed window/s (all the combinations of the lemmas of both words)