to knock
Regular verb: knock - knocked- knocked

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
I knock
you knock
he knocks
we knock
you knock
they knock 	I'mknocking
you'reknocking
he'sknocking
we'reknocking
you'reknocking
they'reknocking	I knocked
you knocked
he knocked
we knocked
you knocked
they knocked	Iwasknocking
youwereknocking
hewasknocking
wewereknocking
youwereknocking
theywereknocking	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
I've knocked
you've knocked
he's knocked
we've knocked
you've knocked
they've knocked	I'vebeen knocking
you'vebeen knocking
he'sbeen knocking
we'vebeen knocking
you'vebeen knocking
they'vebeen knocking	I'd knocked
you'd knocked
he'd knocked
we'd knocked
you'd knocked
they'd knocked	I'd been knocking
you'd been knocking
he'd been knocking
we'd been knocking
you'd been knocking
they'd been knocking	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
I'll knock
you'll knock
he'll knock
we'll knock
you'll knock
they'll knock 	I'll be knocking
you'll be knocking
he'll be knocking
we'll be knocking
you'll be knocking
they'll be knocking	I'll have knocked
you'll have knocked
he'll have knocked
we'll have knocked
you'll have knocked
they'll have knocked	I'll have been knocking
you'll have been knocking
he'll have been knocking
we'll have been knocking
you'll have been knocking
they'll have been knocking	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
I'd knock
you'd knock
he'd knock
we'd knock
you'd knock
they'd knock 	I'd be knocking
you'd be knocking
he'd be knocking
we'd be knocking
you'd be knocking
they'd be knocking	I'd have knocked
you'd have knocked
he'd have knocked
we'd have knocked
you'd have knocked
they'd have knocked	I'd have been knocking
you'd have been knocking
he'd have been knocking
we'd have been knocking
you'd have been knocking
they'd have been knocking	

Infinitive 	
Imperative 	
Infinitive 	 	Imperative 	 	
to knock 	 	knock
Let's knock
knock 	 	

Participle 	
Present 	Past 	 	 	
knocking	knocked