English verb conjugation
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'm yacking you're yacking he's yacking we're yacking you're yacking they're yacking	I yacked you yacked he yacked we yacked you yacked they yacked	I was yacking you were yacking he was yacking we were yacking you were yacking they were yacking
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've been yacking you've been yacking he's been yacking we've been yacking you've been yacking they've been 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