Assertion: auxiliary verb's form | /r/HasProperty | supplied
Facets:
Source sentences:
text: Additional forms can thus be supplied: the infinitive (to) be able to , the subjunctive and (rarely) imperative be able to , and the participles being able to and been able to .
text: Forms usingetc) areused as negative forms of theverb, only of theverb.
text: Additional forms can thus be supplied: the infinitive , the subjunctive and (rarely) imperative , and the participles and .