could burden burden
Verbo regular: burden burden - burden burdened- burden burdened

, este verbo pode não existir, a conjugação é dada como exemplo.

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could burden burden
you could burden burden
she could burden burden
we could burden burden
you could burden burden
they could burden burden 	I could be burden burdening
you could be burden burdening
she could be burden burdening
we could be burden burdening
you could be burden burdening
they could be burden burdening	I could have burden burdened
you could have burden burdened
she could have burden burdened
we could have burden burdened
you could have burden burdened
they could have burden burdened	I could have been burden burdening
you could have been burden burdening
she could have been burden burdening
we could have been burden burdening
you could have been burden burdening
they could have been burden burdening	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't burden burden
you couldn't burden burden
she couldn't burden burden
we couldn't burden burden
you couldn't burden burden
they couldn't burden burden 	I couldn't be burden burdening
you couldn't be burden burdening
she couldn't be burden burdening
we couldn't be burden burdening
you couldn't be burden burdening
they couldn't be burden burdening	I couldn't have burden burdened
you couldn't have burden burdened
she couldn't have burden burdened
we couldn't have burden burdened
you couldn't have burden burdened
they couldn't have burden burdened	I couldn't have been burden burdening
you couldn't have been burden burdening
she couldn't have been burden burdening
we couldn't have been burden burdening
you couldn't have been burden burdening
they couldn't have been burden burdening	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I burden burden?
could you burden burden?
could she burden burden?
could we burden burden?
could you burden burden?
could they burden burden? 	could I be burden burdening?
could you be burden burdening?
could she be burden burdening?
could we be burden burdening?
could you be burden burdening?
could they be burden burdening? 	could I have burden burdened?
could you have burden burdened?
could she have burden burdened?
could we have burden burdened?
could you have burden burdened?
could they have burden burdened? 	could I have been burden burdening?
could you have been burden burdening?
could she have been burden burdening?
could we have been burden burdening?
could you have been burden burdening?
could they have been burden burdening? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I burden burden?
couldn't you burden burden?
couldn't she burden burden?
couldn't we burden burden?
couldn't you burden burden?
couldn't they burden burden? 	couldn't I be burden burdening?
couldn't you be burden burdening?
couldn't she be burden burdening?
couldn't we be burden burdening?
couldn't you be burden burdening?
couldn't they be burden burdening? 	couldn't I have burden burdened?
couldn't you have burden burdened?
couldn't she have burden burdened?
couldn't we have burden burdened?
couldn't you have burden burdened?
couldn't they have burden burdened? 	couldn't I have been burden burdening?
couldn't you have been burden burdening?
couldn't she have been burden burdening?
couldn't we have been burden burdening?
couldn't you have been burden burdening?
couldn't they have been burden burdening?