Category:Icelandic strong verbs

Icelandic verbs that do not use a dental suffix to mark the past tense and past participle, instead using vowel change (ablaut) and often a suffix -(e)n in the past participle.

• Category:Icelandic class 1 strong verbs: Verbs where the ablaut vowel was followed by -y- in Proto-Indo-European.
• Category:Icelandic class 2 strong verbs: Verbs where the ablaut vowel was followed by -w- in Proto-Indo-European.
• Category:Icelandic class 3 strong verbs: Verbs where the ablaut vowel was followed by a consonant cluster in Proto-Indo-European.
• Category:Icelandic class 5 strong verbs: Verbs where the ablaut vowel was followed by consonant other than a sonorant in Proto-Indo-European.
• Category:Icelandic class 6 strong verbs: The Proto-Indo-European origin of this class is not securely known. It contains verbs with the stem vowel -a-, except those where it is followed by a sonorant and another consonant (this combination was considered a diphthong in PIE and therefore belonged to class 7).
• Category:Icelandic class 7 strong verbs: Verbs that retained their reduplication in the past tense in Proto-Germanic.

A category for {{is-verb-strong}}, the principal parts of strong verbs are:

• finna strong verb (third person singular past indicative fann, third person plural past indicative fundu, supine fundið)