how to link the phrase "to attend" when pronounced?
Solution 1:
I'm an AmE speaker, and I don't use the weak form of to before a word starting with a vowel. For me, /tə.wəˈtɛnd/ and /tə.əˈtɛnd/ both sound wrong (although that doesn't mean that other native English speakers don't use them).
I would say /tu.wəˈtɛnd/. I treat the word to (when it's unstressed) just like the and a/an, which are also pronounced differently before words starting with a vowel.