could tithe
Verbo regular: tithe - tithed- tithed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could tithe
you could tithe
he could tithe
we could tithe
you could tithe
they could tithe 	I could be tithing
you could be tithing
he could be tithing
we could be tithing
you could be tithing
they could be tithing	I could have tithed
you could have tithed
he could have tithed
we could have tithed
you could have tithed
they could have tithed	I could have been tithing
you could have been tithing
he could have been tithing
we could have been tithing
you could have been tithing
they could have been tithing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not tithe
you could not tithe
he could not tithe
we could not tithe
you could not tithe
they could not tithe 	I could not be tithing
you could not be tithing
he could not be tithing
we could not be tithing
you could not be tithing
they could not be tithing	I could not have tithed
you could not have tithed
he could not have tithed
we could not have tithed
you could not have tithed
they could not have tithed	I could not have been tithing
you could not have been tithing
he could not have been tithing
we could not have been tithing
you could not have been tithing
they could not have been tithing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I tithe?
could you tithe?
could he tithe?
could we tithe?
could you tithe?
could they tithe? 	could I be tithing?
could you be tithing?
could he be tithing?
could we be tithing?
could you be tithing?
could they be tithing? 	could I have tithed?
could you have tithed?
could he have tithed?
could we have tithed?
could you have tithed?
could they have tithed? 	could I have been tithing?
could you have been tithing?
could he have been tithing?
could we have been tithing?
could you have been tithing?
could they have been tithing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not tithe?
could you not tithe?
could he not tithe?
could we not tithe?
could you not tithe?
could they not tithe? 	could I not be tithing?
could you not be tithing?
could he not be tithing?
could we not be tithing?
could you not be tithing?
could they not be tithing? 	could I not have tithed?
could you not have tithed?
could he not have tithed?
could we not have tithed?
could you not have tithed?
could they not have tithed? 	could I not have been tithing?
could you not have been tithing?
could he not have been tithing?
could we not have been tithing?
could you not have been tithing?
could they not have been tithing?