could fitter
Verbo regular: fitter - fittered- fittered

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could fitter
you could fitter
she could fitter
we could fitter
you could fitter
they could fitter 	I could be fittering
you could be fittering
she could be fittering
we could be fittering
you could be fittering
they could be fittering	I could have fittered
you could have fittered
she could have fittered
we could have fittered
you could have fittered
they could have fittered	I could have been fittering
you could have been fittering
she could have been fittering
we could have been fittering
you could have been fittering
they could have been fittering	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't fitter
you couldn't fitter
she couldn't fitter
we couldn't fitter
you couldn't fitter
they couldn't fitter 	I couldn't be fittering
you couldn't be fittering
she couldn't be fittering
we couldn't be fittering
you couldn't be fittering
they couldn't be fittering	I couldn't have fittered
you couldn't have fittered
she couldn't have fittered
we couldn't have fittered
you couldn't have fittered
they couldn't have fittered	I couldn't have been fittering
you couldn't have been fittering
she couldn't have been fittering
we couldn't have been fittering
you couldn't have been fittering
they couldn't have been fittering	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I fitter?
could you fitter?
could she fitter?
could we fitter?
could you fitter?
could they fitter? 	could I be fittering?
could you be fittering?
could she be fittering?
could we be fittering?
could you be fittering?
could they be fittering? 	could I have fittered?
could you have fittered?
could she have fittered?
could we have fittered?
could you have fittered?
could they have fittered? 	could I have been fittering?
could you have been fittering?
could she have been fittering?
could we have been fittering?
could you have been fittering?
could they have been fittering? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I fitter?
couldn't you fitter?
couldn't she fitter?
couldn't we fitter?
couldn't you fitter?
couldn't they fitter? 	couldn't I be fittering?
couldn't you be fittering?
couldn't she be fittering?
couldn't we be fittering?
couldn't you be fittering?
couldn't they be fittering? 	couldn't I have fittered?
couldn't you have fittered?
couldn't she have fittered?
couldn't we have fittered?
couldn't you have fittered?
couldn't they have fittered? 	couldn't I have been fittering?
couldn't you have been fittering?
couldn't she have been fittering?
couldn't we have been fittering?
couldn't you have been fittering?
couldn't they have been fittering?