for past tense, you can simply add "laew" at the end of the sentence i've been there, i went there = chan pai tee naan laew chan = i pai = went, have been tee naan = there laew = already he was dead, he died = Kao tai laew Kao = he died = tai laew = already for future tense, u just add "Ja" after the subject i'll go there, i'm going there = chan ja pai tee naan chan = i ja = will pai = go tee naan = there I'll call him, i'm going to call him = Chan ja toe ha kao chan = i ja = will toe ha = call kao = him for example ;)