to lengthen
Regular verb: lengthen - lengthened- lengthened

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

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
I wouldn't lengthen
you wouldn't lengthen
she wouldn't lengthen
we wouldn't lengthen
you wouldn't lengthen
they wouldn't lengthen 	I wouldn't be lengthening
you wouldn't be lengthening
she wouldn't be lengthening
we wouldn't be lengthening
you wouldn't be lengthening
they wouldn't be lengthening	I wouldn't have lengthened
you wouldn't have lengthened
she wouldn't have lengthened
we wouldn't have lengthened
you wouldn't have lengthened
they wouldn't have lengthened	I wouldn't have been lengthening
you wouldn't have been lengthening
she wouldn't have been lengthening
we wouldn't have been lengthening
you wouldn't have been lengthening
they wouldn't have been lengthening	

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

Participle 	
Present 	Past 	 	 	
lengthening	lengthened