Basically, you can get the TE-form of verbs simply by changing MASU to TE. Isn't that simple? The verbs that take this pattern have the vowel "E" in their syllables just before MASU. They include ...

To change verbs into nouns, you add NO or KOTO to the plain forms of verbs, such as the dictionary form or the TA-form. Let me explain this, using the sentence in the skit that means "To be a ...