"Spülen" is either a verb used as a noun, in which case it's neuter, "das Spülen", or it's the plural of "die Spüle" (sink, as in kitchen sink) a feminine noun, "die Spülen." Plurals don't have gender in German.
OK, with your additional info., It would have to be:
Helga hilft ihrer Mutter beim Spülen. Helga helped her mother with the washing-up. So it's the infinitve used as a noun.
Or you've got the capital letter wrong and it's a verb, as in:
Helga hilft ihrer Mutter das Geschirr spülen. Helga helped her mother rinse the dishes.
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"Spülen" is either a verb used as a noun, in which case it's neuter, "das Spülen", or it's the plural of "die Spüle" (sink, as in kitchen sink) a feminine noun, "die Spülen." Plurals don't have gender in German.
OK, with your additional info., It would have to be:
Helga hilft ihrer Mutter beim Spülen. Helga helped her mother with the washing-up. So it's the infinitve used as a noun.
Or you've got the capital letter wrong and it's a verb, as in:
Helga hilft ihrer Mutter das Geschirr spülen. Helga helped her mother rinse the dishes.
If you mean "Spülen" with an umlaut over the "u", meaning "washing, rinsing", then:
das Spülen (neuter singular)
If you mean "Spulen" with no umlaut over the "u", meaning "spools, bobbins", then:
die Spulen (feminine plural)
Helga hilft ihrer Mutter ... Spülen.
Helga hilft ihrer Mutter beim Spülen.
Helga helps her mother with the washing up.
beim = bei + dem. das Spülen means "washing up" and it's in the dative here because preposition "bei" takes the dative case.
das Spülen : rinsing
spülen : to rinse
Helga hilft ihrer Mutter beim spülen.
It's called "das Spülen"
It could mean the following:
rinse
flush
wash
irrigate
scavenge
wash up
douche
What context is it in? Is it in a sentence?