Seven-letter words - change zero to two letters to make a new word (Part 1)

Mexican

Texican

taxicab

cabaret

Bearcat

Batcave

vacated

Vacatur

cravats

Catspaw

Catawba

albatas

[nice one!]

Alberta

[thanks!]

bartend

tenders

benders

Sincere

erasing

singers

sinners