to concertina
Regular verb: concertina - concertinaed- concertinaed

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
I don't concertina
you don't concertina
he doesn't concertina
we don't concertina
you don't concertina
they don't concertina 	I'mnot concertinaing
youaren't concertinaing
heisn't concertinaing
wearen't concertinaing
youaren't concertinaing
theyaren't concertinaing	I didn't concertina
you didn't concertina
he didn't concertina
we didn't concertina
you didn't concertina
they didn't concertina 	Iwasn't concertinaing
youweren't concertinaing
hewasn't concertinaing
weweren't concertinaing
youweren't concertinaing
theyweren't concertinaing	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
I haven't concertinaed
you haven't concertinaed
he hasn't concertinaed
we haven't concertinaed
you haven't concertinaed
they haven't concertinaed	I haven't  been concertinaing
you haven't  been concertinaing
he hasn't  been concertinaing
we haven't  been concertinaing
you haven't  been concertinaing
they haven't  been concertinaing	I hadn't concertinaed
you hadn't concertinaed
he hadn't concertinaed
we hadn't concertinaed
you hadn't concertinaed
they hadn't concertinaed	I hadn't been concertinaing
you hadn't been concertinaing
he hadn't been concertinaing
we hadn't been concertinaing
you hadn't been concertinaing
they hadn't been concertinaing	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
I won't concertina
you won't concertina
he won't concertina
we won't concertina
you won't concertina
they won't concertina 	I won't be concertinaing
you won't be concertinaing
he won't be concertinaing
we won't be concertinaing
you won't be concertinaing
they won't be concertinaing	I won't have concertinaed
you won't have concertinaed
he won't have concertinaed
we won't have concertinaed
you won't have concertinaed
they won't have concertinaed	I won't have been concertinaing
you won't have been concertinaing
he won't have been concertinaing
we won't have been concertinaing
you won't have been concertinaing
they won't have been concertinaing	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
I wouldn't concertina
you wouldn't concertina
he wouldn't concertina
we wouldn't concertina
you wouldn't concertina
they wouldn't concertina 	I wouldn't be concertinaing
you wouldn't be concertinaing
he wouldn't be concertinaing
we wouldn't be concertinaing
you wouldn't be concertinaing
they wouldn't be concertinaing	I wouldn't have concertinaed
you wouldn't have concertinaed
he wouldn't have concertinaed
we wouldn't have concertinaed
you wouldn't have concertinaed
they wouldn't have concertinaed	I wouldn't have been concertinaing
you wouldn't have been concertinaing
he wouldn't have been concertinaing
we wouldn't have been concertinaing
you wouldn't have been concertinaing
they wouldn't have been concertinaing	

Infinitive 	
Imperative 	
Infinitive 	 	Imperative 	 	
to concertina 	 	do not concertina
Let's not concertina
do not concertina 	 	

Participle 	
Present 	Past 	 	 	
concertinaing	concertinaed