to preinvestigate
Regular verb: preinvestigate - preinvestigated- preinvestigated

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
I preinvestigate
you preinvestigate
he preinvestigates
we preinvestigate
you preinvestigate
they preinvestigate 	I'mpreinvestigating
you'repreinvestigating
he'spreinvestigating
we'repreinvestigating
you'repreinvestigating
they'repreinvestigating	I preinvestigated
you preinvestigated
he preinvestigated
we preinvestigated
you preinvestigated
they preinvestigated	Iwaspreinvestigating
youwerepreinvestigating
hewaspreinvestigating
wewerepreinvestigating
youwerepreinvestigating
theywerepreinvestigating	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
I've preinvestigated
you've preinvestigated
he's preinvestigated
we've preinvestigated
you've preinvestigated
they've preinvestigated	I'vebeen preinvestigating
you'vebeen preinvestigating
he'sbeen preinvestigating
we'vebeen preinvestigating
you'vebeen preinvestigating
they'vebeen preinvestigating	I'd preinvestigated
you'd preinvestigated
he'd preinvestigated
we'd preinvestigated
you'd preinvestigated
they'd preinvestigated	I'd been preinvestigating
you'd been preinvestigating
he'd been preinvestigating
we'd been preinvestigating
you'd been preinvestigating
they'd been preinvestigating	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
I'll preinvestigate
you'll preinvestigate
he'll preinvestigate
we'll preinvestigate
you'll preinvestigate
they'll preinvestigate 	I'll be preinvestigating
you'll be preinvestigating
he'll be preinvestigating
we'll be preinvestigating
you'll be preinvestigating
they'll be preinvestigating	I'll have preinvestigated
you'll have preinvestigated
he'll have preinvestigated
we'll have preinvestigated
you'll have preinvestigated
they'll have preinvestigated	I'll have been preinvestigating
you'll have been preinvestigating
he'll have been preinvestigating
we'll have been preinvestigating
you'll have been preinvestigating
they'll have been preinvestigating	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
I'd preinvestigate
you'd preinvestigate
he'd preinvestigate
we'd preinvestigate
you'd preinvestigate
they'd preinvestigate 	I'd be preinvestigating
you'd be preinvestigating
he'd be preinvestigating
we'd be preinvestigating
you'd be preinvestigating
they'd be preinvestigating	I'd have preinvestigated
you'd have preinvestigated
he'd have preinvestigated
we'd have preinvestigated
you'd have preinvestigated
they'd have preinvestigated	I'd have been preinvestigating
you'd have been preinvestigating
he'd have been preinvestigating
we'd have been preinvestigating
you'd have been preinvestigating
they'd have been preinvestigating	

Infinitive 	
Imperative 	
Infinitive 	 	Imperative 	 	
to preinvestigate 	 	preinvestigate
Let's preinvestigate
preinvestigate 	 	

Participle 	
Present 	Past 	 	 	
preinvestigating	preinvestigated