Originally posted by Ben Kenobi
tense
'have forgotten'
J'ai oublier?
tense
'have forgotten'
J'ai oublier?
For verbs ending with "er", the composite past ends with "é".
As for the difference between "Je n'ai pas de stylo" and "Je n'ai pas un stylo", it comes from the fact that the English word "a" is hard to translate. The French "un" emphasizes most often on the quantity. More often than not, you should use "un" where you'd une "one" in an English sentence.
In this precise case, the amount on pens you don't have is indefinite, so "de". If you wanted to emphasize that you didn't even have one pen, then you could say "Je n'ai même pas un stylo"
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