Verbs-Grammatical categories
Carried by the form of the verb (main verb of first auxiliary) or the operator
Person – distinction in person singular
Number – 3rd person –s; others don’t
Tense – write ® wrote, run ® ran, play ® played
Mood
o unmarked indicative I go
o marked imperative Go, Let’s go
o subjunctive He goes, I wish he went
Carried by separate auxiliary verbs
Mood
§ unmarked declarative
§ marked interrogative (by auxiliary verb)
Polarity
§ unmarked aformative
§ marked negative
Modality
§ marked deontic (you must; dispoziční modality)
§ marked epistemic
Aspect
§ marked perfective (auxiliary have)
§ marked progressive (auxiliary be)
Voice
§ unmarked active
§ marked passive (auxiliary be)