Recently I have extended the kinds of sentences that Inglua can handle. Inglua now supports (and generates) modal verbs.
Modal verbs cannot stand by themselves. Instead they change the meaning of the verb. For instance, “I swim.” is pretty straightforward. “I can swim.” is a typical example of a modal verb. So is “I want to swim.”
Of course, these sentences may also appear in the perfect tense, or in a question: “I have not wanted to swim.”, and “Do I want to swim?”.
In English, the hard bits are determining whether to use ‘to’, and dealing with the surprising appearance of the word ‘do’ in questions and negations. Also difficult is that “I cannot swim.” in the perfect tense turns into “I have not been able to swim.”
German is hard because it tends to reverse the order of the predicate: “Ich habe den Hund nicht fallen lassen wollen.”
And both German and Dutch turn the perfect tense into an infinitive if it’s not the ‘ultimate’ verb. “Ik heb de kat niet gezien.” vs. “Ik heb de kat niet willen zien.” French, on the other hand, leaves the perfect in: “Je n’ai pas voulu voir le chat.”
