There seems to a be specific issue on the entry haatsje caused by the fact that the template bases the infinitive off of the root form given for {{{1}}}. In this specific verb, the infinitive is irregular and can't be predicted based off of the root form. Two possible solutions: add a new parameter for the infinitive that then is used for all the verb forms that have the infinitive as the root: inf, long inf, gerund, 1st singular present, imperative, present participle. Or the template could automatically use the page title as this infinitive form and only require that the present stem be inputted, as well as the past stem in cases of an irregular past tense, as is the current state. Ppcosta (talk) 21:29, 3 June 2020 (UTC)