Rule XVI: (dd), avoid consonant doubling

	XVI.	Abbreviation:	(dd)
		Description:	Avoiding duplication of "d" in the Voltooid Deelwoord for verbs, whose verb primitive already ends on "d".
		Example verb:	23.	landen (weak verb)
		Application:	-	the verb primitive ends on the consonant "d".

		Applies for (weak verbs):
			OTT (Present):	-
			OVT (Past):	-
			Imperatief:	-
			Voltooid Deelwoord (Past Participle):	always
		Applies for (strong verbs):
			OTT (Present):	-
			OVT (Past):	-
			Imperatief:	-
			Voltooid Deelwoord (Past Participle):	always, however strong conjugation
		Example:
			OTT (Present):	weak: "landen" => "geland", not "gelandd"
			OTT (Present):	strong: "vinden" => "gevonden", not "gevondden"
		Detection:	Verbtime detects these verbs automatically.

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also see:
Overview - Verb irregularities