Here are some others, depending on how you define "main language":
* United States - English is the official language and the most widely spoken.
* Canada - English is one of two official languages, alongside French.
* Australia - English is the official language and the most widely spoken.
* New Zealand - English is the official language and the most widely spoken.
* Ireland - English is one of two official languages, alongside Irish.
* Jamaica - English is the official language and the most widely spoken.
* Barbados - English is the official language and the most widely spoken.
* Trinidad and Tobago - English is the official language and the most widely spoken.
* Belize - English is the official language and the most widely spoken.
* Guyana - English is the official language and the most widely spoken.
It's important to note that in some of these countries, there are other languages spoken alongside English.