If you are making te-form from masu-form, and the verb is not irregular("kimasu" and "shimasu" ) nor ichidan-verb("-emasu" and several "-imasu"), sing this song along with the melody of "Twinkle Twinkle Little Star" : Twinkle, twinkle,little star, i-chi-ri-tte, Mi-bi-nde, How I wonder what you are! Shi-shite, Ki-ite, Gi-ide. This song tells the relationship between the letter before "masu" and te-form. If the verb has "i","chi" or "ri" before "masu", put "tte". (Kai-masu -> katte) If the verb has "mi" or "bi", put "nde." (Yomi-masu ->Yonde). If the verb has "shi" , put "shite". (Keshi-masu->keshite) If the verb has "ki", put "ite". (Kikimasu->kiite) If it has "gi", put "ide". (Oyogimasu->oyoide) Note "Ikimasu" is exception for te-form. Ikimasu-> itte. Irregular is irregular, so you must just memorize. Kimasu->kite Shimasu->shite If it's ichidan-verb(group II in most textbooks), simply take off "masu" and put "te". Tabe-masu-> Tabete Mi-masu -> Mite

The following webpage contains a number of grammatical concepts in Japanese (written in English): http://homepage3.nifty.com/jgrammar/index.htm From there, please click into "The Verbal Conjugation" under the section of "Verbs, Adjectival Verbs, Auxiliary Verbs". Then, you look for the term "past - participle" in all those verb tables, and you would be able to obtain the relevant information. Additionally, please kindly notice the correct spelling of the word "Japanese". Take care and good day. / 気をつけて、そして 良い一日を。

There are many charts online that you can print and study. That's how I memorized て form. :]