I can trace you can trace he can trace we can trace you can trace they can trace
Forma con V-ing
I can be tracing you can be tracing he can be tracing we can be tracing you can be tracing they can be tracing
Perfecto
I can have traced you can have traced he can have traced we can have traced you can have traced they can have traced
Perfecto con V-ing
I can have been tracing you can have been tracing he can have been tracing we can have been tracing you can have been tracing they can have been tracing
Negación
Forma simple
I can't trace you can't trace he can't trace we can't trace you can't trace they can't trace
Forma con V-ing
I can't be tracing you can't be tracing he can't be tracing we can't be tracing you can't be tracing they can't be tracing
Perfecto
I can't have traced you can't have traced he can't have traced we can't have traced you can't have traced they can't have traced
Perfecto con V-ing
I can't have been tracing you can't have been tracing he can't have been tracing we can't have been tracing you can't have been tracing they can't have been tracing
Forma interrogativa
Forma simple
can I trace? can you trace? can he trace? can we trace? can you trace? can they trace?
Forma con V-ing
can I be tracing? can you be tracing? can he be tracing? can we be tracing? can you be tracing? can they be tracing?
Perfecto
can I have traced? can you have traced? can he have traced? can we have traced? can you have traced? can they have traced?
Perfecto con V-ing
can I have been tracing? can you have been tracing? can he have been tracing? can we have been tracing? can you have been tracing? can they have been tracing?
Forma interro-negativa
Forma simple
can't I trace? can't you trace? can't he trace? can't we trace? can't you trace? can't they trace?
Forma con V-ing
can't I be tracing? can't you be tracing? can't he be tracing? can't we be tracing? can't you be tracing? can't they be tracing?
Perfecto
can't I have traced? can't you have traced? can't he have traced? can't we have traced? can't you have traced? can't they have traced?
Perfecto con V-ing
can't I have been tracing? can't you have been tracing? can't he have been tracing? can't we have been tracing? can't you have been tracing? can't they have been tracing?