atomizing

atoning

atrophying

attaching

attacking

attaining

attainting

attempering

attempting

attending

attendings

attenuating

attesting

atticizing

atting

attiring

attitudinising

attitudinizing

attorning

attracting

attributing

attriting

attritting

attuning

auctioning

audibilizing

audibling

auding

audings

auditing

auditioning

augmenting

auguring

aureoling

auscultating

ausforming

authenticating

authoring

authorising

authorizing

autoclaving

autodialing

autodialling

autografting

autographing

autoing

autolysing

autolyzing

automating

automatizing