to diphthongise
Regular verb: diphthongise - diphthongised- diphthongised

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
I diphthongise
you diphthongise
he diphthongises
we diphthongise
you diphthongise
they diphthongise 	I'mdiphthongising
you'rediphthongising
he'sdiphthongising
we'rediphthongising
you'rediphthongising
they'rediphthongising	I diphthongised
you diphthongised
he diphthongised
we diphthongised
you diphthongised
they diphthongised	Iwasdiphthongising
youwerediphthongising
hewasdiphthongising
wewerediphthongising
youwerediphthongising
theywerediphthongising	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
I've diphthongised
you've diphthongised
he's diphthongised
we've diphthongised
you've diphthongised
they've diphthongised	I'vebeen diphthongising
you'vebeen diphthongising
he'sbeen diphthongising
we'vebeen diphthongising
you'vebeen diphthongising
they'vebeen diphthongising	I'd diphthongised
you'd diphthongised
he'd diphthongised
we'd diphthongised
you'd diphthongised
they'd diphthongised	I'd been diphthongising
you'd been diphthongising
he'd been diphthongising
we'd been diphthongising
you'd been diphthongising
they'd been diphthongising	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
I'll diphthongise
you'll diphthongise
he'll diphthongise
we'll diphthongise
you'll diphthongise
they'll diphthongise 	I'll be diphthongising
you'll be diphthongising
he'll be diphthongising
we'll be diphthongising
you'll be diphthongising
they'll be diphthongising	I'll have diphthongised
you'll have diphthongised
he'll have diphthongised
we'll have diphthongised
you'll have diphthongised
they'll have diphthongised	I'll have been diphthongising
you'll have been diphthongising
he'll have been diphthongising
we'll have been diphthongising
you'll have been diphthongising
they'll have been diphthongising	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
I'd diphthongise
you'd diphthongise
he'd diphthongise
we'd diphthongise
you'd diphthongise
they'd diphthongise 	I'd be diphthongising
you'd be diphthongising
he'd be diphthongising
we'd be diphthongising
you'd be diphthongising
they'd be diphthongising	I'd have diphthongised
you'd have diphthongised
he'd have diphthongised
we'd have diphthongised
you'd have diphthongised
they'd have diphthongised	I'd have been diphthongising
you'd have been diphthongising
he'd have been diphthongising
we'd have been diphthongising
you'd have been diphthongising
they'd have been diphthongising	

Infinitive 	
Imperative 	
Infinitive 	 	Imperative 	 	
to diphthongise 	 	diphthongise
Let's diphthongise
diphthongise 	 	

Participle 	
Present 	Past 	 	 	
diphthongising	diphthongised