to tighten
Regular verb: tighten - tightened- tightened

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
I don't tighten
you don't tighten
she doesn't tighten
we don't tighten
you don't tighten
they don't tighten 	I'mnot tightening
youaren't tightening
sheisn't tightening
wearen't tightening
youaren't tightening
theyaren't tightening	I didn't tighten
you didn't tighten
she didn't tighten
we didn't tighten
you didn't tighten
they didn't tighten 	Iwasn't tightening
youweren't tightening
shewasn't tightening
weweren't tightening
youweren't tightening
theyweren't tightening	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
I haven't tightened
you haven't tightened
she hasn't tightened
we haven't tightened
you haven't tightened
they haven't tightened	I haven't  been tightening
you haven't  been tightening
she hasn't  been tightening
we haven't  been tightening
you haven't  been tightening
they haven't  been tightening	I hadn't tightened
you hadn't tightened
she hadn't tightened
we hadn't tightened
you hadn't tightened
they hadn't tightened	I hadn't been tightening
you hadn't been tightening
she hadn't been tightening
we hadn't been tightening
you hadn't been tightening
they hadn't been tightening	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
I won't tighten
you won't tighten
she won't tighten
we won't tighten
you won't tighten
they won't tighten 	I won't be tightening
you won't be tightening
she won't be tightening
we won't be tightening
you won't be tightening
they won't be tightening	I won't have tightened
you won't have tightened
she won't have tightened
we won't have tightened
you won't have tightened
they won't have tightened	I won't have been tightening
you won't have been tightening
she won't have been tightening
we won't have been tightening
you won't have been tightening
they won't have been tightening	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
I wouldn't tighten
you wouldn't tighten
she wouldn't tighten
we wouldn't tighten
you wouldn't tighten
they wouldn't tighten 	I wouldn't be tightening
you wouldn't be tightening
she wouldn't be tightening
we wouldn't be tightening
you wouldn't be tightening
they wouldn't be tightening	I wouldn't have tightened
you wouldn't have tightened
she wouldn't have tightened
we wouldn't have tightened
you wouldn't have tightened
they wouldn't have tightened	I wouldn't have been tightening
you wouldn't have been tightening
she wouldn't have been tightening
we wouldn't have been tightening
you wouldn't have been tightening
they wouldn't have been tightening	

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

Participle 	
Present 	Past 	 	 	
tightening	tightened