Number 10. is going to be Leather
"Está bien si llevas la ropa casual como en los EE.UU. porque es lo mismo en los países hispanohablantes."
I hope this answers your question!
I was taught to call them yo -go irregulars because the verb's stem ends with -go in the yo (I) form
Ex: Yo Tener(To have) becomes "Tengo"
Yo Venir(To come) becomes "Vengo"
Hope this helps