to lack
Regular verb: lack - lacked- lacked

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
I lack
you lack
she lacks
we lack
you lack
they lack 	I'mlacking
you'relacking
she'slacking
we'relacking
you'relacking
they'relacking	I lacked
you lacked
she lacked
we lacked
you lacked
they lacked	Iwaslacking
youwerelacking
shewaslacking
wewerelacking
youwerelacking
theywerelacking	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
I've lacked
you've lacked
she's lacked
we've lacked
you've lacked
they've lacked	I'vebeen lacking
you'vebeen lacking
she'sbeen lacking
we'vebeen lacking
you'vebeen lacking
they'vebeen lacking	I'd lacked
you'd lacked
she'd lacked
we'd lacked
you'd lacked
they'd lacked	I'd been lacking
you'd been lacking
she'd been lacking
we'd been lacking
you'd been lacking
they'd been lacking	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
I'll lack
you'll lack
she'll lack
we'll lack
you'll lack
they'll lack 	I'll be lacking
you'll be lacking
she'll be lacking
we'll be lacking
you'll be lacking
they'll be lacking	I'll have lacked
you'll have lacked
she'll have lacked
we'll have lacked
you'll have lacked
they'll have lacked	I'll have been lacking
you'll have been lacking
she'll have been lacking
we'll have been lacking
you'll have been lacking
they'll have been lacking	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
I'd lack
you'd lack
she'd lack
we'd lack
you'd lack
they'd lack 	I'd be lacking
you'd be lacking
she'd be lacking
we'd be lacking
you'd be lacking
they'd be lacking	I'd have lacked
you'd have lacked
she'd have lacked
we'd have lacked
you'd have lacked
they'd have lacked	I'd have been lacking
you'd have been lacking
she'd have been lacking
we'd have been lacking
you'd have been lacking
they'd have been lacking	

Infinitive 	
Imperative 	
Infinitive 	 	Imperative 	 	
to lack 	 	lack
Let's lack
lack 	 	

Participle 	
Present 	Past 	 	 	
lacking	lacked