Conjugation & Steam Form

Conjugation & Steam Form

We must understand the conjugation & steam line to make changes between Group1 and Group2, Polite and Non-polite form, and Te (て) form as well.
Here's the sample

Example:
Group
Ikanai
Ikimasu
Iku
Ikeba
Ikoo
Itte
*) Ka,Ki,Ku,Ke,Ko called as conjugation line (Applied to Group1)

1 Group 2
Okiru
Okimasu
Okiru
Okireba
Okiyoo
Okite
*) Oki called as Steam line (Applied to Group 2)