can travel
Verbo regular: travel - travelled- travelled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can travel
you can travel
he can travel
we can travel
you can travel
they can travel 	I can be travelling
you can be travelling
he can be travelling
we can be travelling
you can be travelling
they can be travelling	I can have travelled
you can have travelled
he can have travelled
we can have travelled
you can have travelled
they can have travelled	I can have been travelling
you can have been travelling
he can have been travelling
we can have been travelling
you can have been travelling
they can have been travelling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can't travel
you can't travel
he can't travel
we can't travel
you can't travel
they can't travel 	I can't be travelling
you can't be travelling
he can't be travelling
we can't be travelling
you can't be travelling
they can't be travelling	I can't have travelled
you can't have travelled
he can't have travelled
we can't have travelled
you can't have travelled
they can't have travelled	I can't have been travelling
you can't have been travelling
he can't have been travelling
we can't have been travelling
you can't have been travelling
they can't have been travelling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I travel?
can you travel?
can he travel?
can we travel?
can you travel?
can they travel? 	can I be travelling?
can you be travelling?
can he be travelling?
can we be travelling?
can you be travelling?
can they be travelling? 	can I have travelled?
can you have travelled?
can he have travelled?
can we have travelled?
can you have travelled?
can they have travelled? 	can I have been travelling?
can you have been travelling?
can he have been travelling?
can we have been travelling?
can you have been travelling?
can they have been travelling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can't I travel?
can't you travel?
can't he travel?
can't we travel?
can't you travel?
can't they travel? 	can't I be travelling?
can't you be travelling?
can't he be travelling?
can't we be travelling?
can't you be travelling?
can't they be travelling? 	can't I have travelled?
can't you have travelled?
can't he have travelled?
can't we have travelled?
can't you have travelled?
can't they have travelled? 	can't I have been travelling?
can't you have been travelling?
can't he have been travelling?
can't we have been travelling?
can't you have been travelling?
can't they have been travelling?