Future perfect continous ((((；ﾟДﾟ))

I can make sure the tense about "Future perfect continous" with this site!
http://www.english-the-easy-way.com/Future_Tense/Future_Perfect_Continuous_Tense.htm

I will have been studying abroad for 3 month on April.

I will have been working as an MC for 10 years next year.

I will be very good at English when I come back to Japan, because I will have been learning English for 10 years .