could compost
Verbo regular: compost - composted- composted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could compost
you could compost
he could compost
we could compost
you could compost
they could compost 	I could be composting
you could be composting
he could be composting
we could be composting
you could be composting
they could be composting	I could have composted
you could have composted
he could have composted
we could have composted
you could have composted
they could have composted	I could have been composting
you could have been composting
he could have been composting
we could have been composting
you could have been composting
they could have been composting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't compost
you couldn't compost
he couldn't compost
we couldn't compost
you couldn't compost
they couldn't compost 	I couldn't be composting
you couldn't be composting
he couldn't be composting
we couldn't be composting
you couldn't be composting
they couldn't be composting	I couldn't have composted
you couldn't have composted
he couldn't have composted
we couldn't have composted
you couldn't have composted
they couldn't have composted	I couldn't have been composting
you couldn't have been composting
he couldn't have been composting
we couldn't have been composting
you couldn't have been composting
they couldn't have been composting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I compost?
could you compost?
could he compost?
could we compost?
could you compost?
could they compost? 	could I be composting?
could you be composting?
could he be composting?
could we be composting?
could you be composting?
could they be composting? 	could I have composted?
could you have composted?
could he have composted?
could we have composted?
could you have composted?
could they have composted? 	could I have been composting?
could you have been composting?
could he have been composting?
could we have been composting?
could you have been composting?
could they have been composting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I compost?
couldn't you compost?
couldn't he compost?
couldn't we compost?
couldn't you compost?
couldn't they compost? 	couldn't I be composting?
couldn't you be composting?
couldn't he be composting?
couldn't we be composting?
couldn't you be composting?
couldn't they be composting? 	couldn't I have composted?
couldn't you have composted?
couldn't he have composted?
couldn't we have composted?
couldn't you have composted?
couldn't they have composted? 	couldn't I have been composting?
couldn't you have been composting?
couldn't he have been composting?
couldn't we have been composting?
couldn't you have been composting?
couldn't they have been composting?