"Let me tell you my family name", said Tom Swift

[pne]

Amy seems to have trouble distinguishing between adjectives and adverbs in English, inconsistently sometimes adding -ly to adjectives or leaving it off adverbs. It surely doesn't help that predicate adjectives and adverbs have the same form in the German (namely, the bare stem).

For example, she might say, "We have to be carefully" or "I called you very loud".

Comments

[elgrande.livejournal.com]

It would actually be "Ni devas esti singardaj", i.e. with an adjective form. You may be confusing this with sentences without a subject, where the word does take the adverb form rather than the adjective form, e.g. "It's hot" is "Estas varme".

[allegrox.livejournal.com]

Foiled again. You are correct.