to congratulate
Regular verb: congratulate - congratulated- congratulated

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
I congratulate
you congratulate
she congratulates
we congratulate
you congratulate
they congratulate 	I'mcongratulating
you'recongratulating
she'scongratulating
we'recongratulating
you'recongratulating
they'recongratulating	I congratulated
you congratulated
she congratulated
we congratulated
you congratulated
they congratulated	Iwascongratulating
youwerecongratulating
shewascongratulating
wewerecongratulating
youwerecongratulating
theywerecongratulating	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
I've congratulated
you've congratulated
she's congratulated
we've congratulated
you've congratulated
they've congratulated	I'vebeen congratulating
you'vebeen congratulating
she'sbeen congratulating
we'vebeen congratulating
you'vebeen congratulating
they'vebeen congratulating	I'd congratulated
you'd congratulated
she'd congratulated
we'd congratulated
you'd congratulated
they'd congratulated	I'd been congratulating
you'd been congratulating
she'd been congratulating
we'd been congratulating
you'd been congratulating
they'd been congratulating	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
I'll congratulate
you'll congratulate
she'll congratulate
we'll congratulate
you'll congratulate
they'll congratulate 	I'll be congratulating
you'll be congratulating
she'll be congratulating
we'll be congratulating
you'll be congratulating
they'll be congratulating	I'll have congratulated
you'll have congratulated
she'll have congratulated
we'll have congratulated
you'll have congratulated
they'll have congratulated	I'll have been congratulating
you'll have been congratulating
she'll have been congratulating
we'll have been congratulating
you'll have been congratulating
they'll have been congratulating	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
I'd congratulate
you'd congratulate
she'd congratulate
we'd congratulate
you'd congratulate
they'd congratulate 	I'd be congratulating
you'd be congratulating
she'd be congratulating
we'd be congratulating
you'd be congratulating
they'd be congratulating	I'd have congratulated
you'd have congratulated
she'd have congratulated
we'd have congratulated
you'd have congratulated
they'd have congratulated	I'd have been congratulating
you'd have been congratulating
she'd have been congratulating
we'd have been congratulating
you'd have been congratulating
they'd have been congratulating	

Infinitive 	
Imperative 	
Infinitive 	 	Imperative 	 	
to congratulate 	 	congratulate
Let's congratulate
congratulate 	 	

Participle 	
Present 	Past 	 	 	
congratulating	congratulated