How to start to tech my son speak in english

[kanyapat kanchanapen]

I am mother of the son of 3 months and half,I am Thai but my husband is spainish .we living in Spain .my husband doesn't know english ,I know just a littlet bit and speak just a little also.
I got the first son .I wish that him can speak and know english very well.
I am wifehouse only takecare my son. My husband work ,so that mean who that can tech my son is only me.
How can I tech to him en english.

I so sorry that write down in english because i didn't have keyboard in Thai. so you can know my english still not good.
please answer to me .

Thank you very much,
kanyapat kanchanapen.

[kanyapat kanchanapen]

How I tech my son to speak en english.
Ex. I speak only Thai or Thai and english together .What is better' for my situation?

Thank you,
kanyapat kanchanapen