to countersign
Regular verb: countersign - countersigned- countersigned

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
I countersign
you countersign
he countersigns
we countersign
you countersign
they countersign 	I'mcountersigning
you'recountersigning
he'scountersigning
we'recountersigning
you'recountersigning
they'recountersigning	I countersigned
you countersigned
he countersigned
we countersigned
you countersigned
they countersigned	Iwascountersigning
youwerecountersigning
hewascountersigning
wewerecountersigning
youwerecountersigning
theywerecountersigning	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
I've countersigned
you've countersigned
he's countersigned
we've countersigned
you've countersigned
they've countersigned	I'vebeen countersigning
you'vebeen countersigning
he'sbeen countersigning
we'vebeen countersigning
you'vebeen countersigning
they'vebeen countersigning	I'd countersigned
you'd countersigned
he'd countersigned
we'd countersigned
you'd countersigned
they'd countersigned	I'd been countersigning
you'd been countersigning
he'd been countersigning
we'd been countersigning
you'd been countersigning
they'd been countersigning	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
I'll countersign
you'll countersign
he'll countersign
we'll countersign
you'll countersign
they'll countersign 	I'll be countersigning
you'll be countersigning
he'll be countersigning
we'll be countersigning
you'll be countersigning
they'll be countersigning	I'll have countersigned
you'll have countersigned
he'll have countersigned
we'll have countersigned
you'll have countersigned
they'll have countersigned	I'll have been countersigning
you'll have been countersigning
he'll have been countersigning
we'll have been countersigning
you'll have been countersigning
they'll have been countersigning	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
I'd countersign
you'd countersign
he'd countersign
we'd countersign
you'd countersign
they'd countersign 	I'd be countersigning
you'd be countersigning
he'd be countersigning
we'd be countersigning
you'd be countersigning
they'd be countersigning	I'd have countersigned
you'd have countersigned
he'd have countersigned
we'd have countersigned
you'd have countersigned
they'd have countersigned	I'd have been countersigning
you'd have been countersigning
he'd have been countersigning
we'd have been countersigning
you'd have been countersigning
they'd have been countersigning	

Infinitive 	
Imperative 	
Infinitive 	 	Imperative 	 	
to countersign 	 	countersign
Let's countersign
countersign 	 	

Participle 	
Present 	Past 	 	 	
countersigning	countersigned