Родительный Падеж - Plural

Ok so this one is painful, I'll admit it. But it is supposedly the most difficult aspect of any case, once we're through this it will only get better :)

You remove the ending and add whatever it says to add!

Just to simplify this, if you want:

It tends to be restricted to these three: -ов(m), -ей(-ь), -lose ending(f, n)

1. Masculine

---

Ending	/	-й	-ь
Add	-ов	-ев	-ей

2. Feminine

---

Ending	-а	-я	-ия	-ь
Add	/	-ь	-ий	-ей

3. Neutral

---

Ending	-о	-е	-я
Add	/	-ий	-ён

So, let's take some examples(starting from masculine with 'no' ending all the way through to the end):

Masc.

1. Го́лос -> Голосо́в

2. Музей -> Музее́в

3. День -> Дней ... the e always disappears with this one, like отец

Fem.

1. Голова́ -> Голо́в

2. Земля́ -> Земе́ль

3. Фами́лия -> Фами́лий

4. жизнь -> Жи́зней

Neu.

1. Лицо́ -> Лиц

2. Мне́ние -> Мне́ний

3. Вре́мя -> Времён

A lot to remember, but I think this format is better than the way I tried to explain the first part.

Either way, you all have to tell me how you prefer it.