act upon
verb
Infinitive
act upon
Present tense 3rd person singular
acts upon
Preterite
acted upon
Present participle
acting upon
Past participle
acted upon
verb
act upon
acts upon
acted upon
acting upon
acted upon
verb vi
verb
verb
verb
verb
verb
verb
verb
verb
verb
verb
verb
verb
verb
verb
verb
verb
verb
verb
verb