to yack
Regular verb: yack - yacked- yacked

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
I yack
you yack
he yacks
we yack
you yack
they yack 	I'myacking
you'reyacking
he'syacking
we'reyacking
you'reyacking
they'reyacking	I yacked
you yacked
he yacked
we yacked
you yacked
they yacked	Iwasyacking
youwereyacking
hewasyacking
wewereyacking
youwereyacking
theywereyacking	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
I've yacked
you've yacked
he's yacked
we've yacked
you've yacked
they've yacked	I'vebeen yacking
you'vebeen yacking
he'sbeen yacking
we'vebeen yacking
you'vebeen yacking
they'vebeen yacking	I'd yacked
you'd yacked
he'd yacked
we'd yacked
you'd yacked
they'd yacked	I'd been yacking
you'd been yacking
he'd been yacking
we'd been yacking
you'd been yacking
they'd been yacking	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
I'll yack
you'll yack
he'll yack
we'll yack
you'll yack
they'll yack 	I'll be yacking
you'll be yacking
he'll be yacking
we'll be yacking
you'll be yacking
they'll be yacking	I'll have yacked
you'll have yacked
he'll have yacked
we'll have yacked
you'll have yacked
they'll have yacked	I'll have been yacking
you'll have been yacking
he'll have been yacking
we'll have been yacking
you'll have been yacking
they'll have been yacking	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
I'd yack
you'd yack
he'd yack
we'd yack
you'd yack
they'd yack 	I'd be yacking
you'd be yacking
he'd be yacking
we'd be yacking
you'd be yacking
they'd be yacking	I'd have yacked
you'd have yacked
he'd have yacked
we'd have yacked
you'd have yacked
they'd have yacked	I'd have been yacking
you'd have been yacking
he'd have been yacking
we'd have been yacking
you'd have been yacking
they'd have been yacking	

Infinitive 	
Imperative 	
Infinitive 	 	Imperative 	 	
to yack 	 	yack
Let's yack
yack 	 	

Participle 	
Present 	Past 	 	 	
yacking	yacked