to prolong
Regular verb: prolong - prolonged- prolonged

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
I prolong
you prolong
he prolongs
we prolong
you prolong
they prolong 	I'mprolonging
you'reprolonging
he'sprolonging
we'reprolonging
you'reprolonging
they'reprolonging	I prolonged
you prolonged
he prolonged
we prolonged
you prolonged
they prolonged	Iwasprolonging
youwereprolonging
hewasprolonging
wewereprolonging
youwereprolonging
theywereprolonging	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
I've prolonged
you've prolonged
he's prolonged
we've prolonged
you've prolonged
they've prolonged	I'vebeen prolonging
you'vebeen prolonging
he'sbeen prolonging
we'vebeen prolonging
you'vebeen prolonging
they'vebeen prolonging	I'd prolonged
you'd prolonged
he'd prolonged
we'd prolonged
you'd prolonged
they'd prolonged	I'd been prolonging
you'd been prolonging
he'd been prolonging
we'd been prolonging
you'd been prolonging
they'd been prolonging	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
I'll prolong
you'll prolong
he'll prolong
we'll prolong
you'll prolong
they'll prolong 	I'll be prolonging
you'll be prolonging
he'll be prolonging
we'll be prolonging
you'll be prolonging
they'll be prolonging	I'll have prolonged
you'll have prolonged
he'll have prolonged
we'll have prolonged
you'll have prolonged
they'll have prolonged	I'll have been prolonging
you'll have been prolonging
he'll have been prolonging
we'll have been prolonging
you'll have been prolonging
they'll have been prolonging	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
I'd prolong
you'd prolong
he'd prolong
we'd prolong
you'd prolong
they'd prolong 	I'd be prolonging
you'd be prolonging
he'd be prolonging
we'd be prolonging
you'd be prolonging
they'd be prolonging	I'd have prolonged
you'd have prolonged
he'd have prolonged
we'd have prolonged
you'd have prolonged
they'd have prolonged	I'd have been prolonging
you'd have been prolonging
he'd have been prolonging
we'd have been prolonging
you'd have been prolonging
they'd have been prolonging	

Infinitive 	
Imperative 	
Infinitive 	 	Imperative 	 	
to prolong 	 	prolong
Let's prolong
prolong 	 	

Participle 	
Present 	Past 	 	 	
prolonging	prolonged