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Kommen (to come) is also an irregular verb. But its irregular past tense form (kam) has an<br />
umlaut vowel (a, o, u). When an irregular verb has an umlaut vowel, its subjunctive II forms will<br />
require an umlaut:<br />
Subjunctive I<br />
Subjunctive II<br />
ich komme käme<br />
du kommest kämest<br />
er komme käme<br />
wir kommen kämen<br />
ihr kommet kämet<br />
sie kommen kämen<br />
Kennen (to know) is an irregular verb that has a vowel change in the past tense and also has<br />
the past tense suffix -te (kannte). When this verb is conjugated in subjunctive II, the vowel change<br />
is avoided. This also occurs with other verbs in this category, such as nennen (to name) and brennen<br />
(to burn):<br />
Subjunctive I<br />
Subjunctive II<br />
ich kenne kennte<br />
du kennest kenntest<br />
er kenne kennte<br />
wir kennen kennten<br />
ihr kennet kenntet<br />
sie kennen kennten<br />
Denken (to think) is another irregular verb that has a vowel change in the past tense and also<br />
has the past tense suffix -te (dachte). When this verb is conjugated in subjunctive II, the vowel<br />
change is maintained and an umlaut is added. This also occurs with other verbs in this category,<br />
such as bringen (to bring) and wissen (to know):<br />
Subjunctive I<br />
Subjunctive II<br />
ich denke dächte<br />
du denkest dächtest<br />
er denke dächte<br />
wir denken dächten<br />
ihr denket dächtet<br />
sie denken dächten<br />
Modals and the umlaut<br />
Müssen (to have to) and other modal auxiliaries that have an umlaut in the infinitive keep the<br />
umlaut in subjunctive II. Modals that do not have an umlaut in the infinitive, e.g., wollen (to<br />
want), do not have one in subjunctive II:<br />
MÜSSEN<br />
Wollen<br />
ich müsse müsste wolle wollte<br />
du müssest müsstest wollest wolltest<br />
er müsse müsste wolle wollte<br />
wir müssen müssten wollen wollten<br />
ihr müsset müsstet wollet wolltet<br />
sie müssen müssten wollen wollten<br />
134 Practice Makes Perfect German Sentence Builder