Conjugación del verbo inglés
CAN TREK

Verbo regular: trek - trekked - trekked

Afirmación

Forma simple	Forma con V-ing
I can trek you can trek he can trek we can trek you can trek they can trek	I can be trekking you can be trekking he can be trekking we can be trekking you can be trekking they can be trekking
Perfecto	Perfecto con V-ing
I can have trekked you can have trekked he can have trekked we can have trekked you can have trekked they can have trekked	I can have been trekking you can have been trekking he can have been trekking we can have been trekking you can have been trekking they can have been trekking

Negación

Forma simple	Forma con V-ing
I can't trek you can't trek he can't trek we can't trek you can't trek they can't trek	I can't be trekking you can't be trekking he can't be trekking we can't be trekking you can't be trekking they can't be trekking
Perfecto	Perfecto con V-ing
I can't have trekked you can't have trekked he can't have trekked we can't have trekked you can't have trekked they can't have trekked	I can't have been trekking you can't have been trekking he can't have been trekking we can't have been trekking you can't have been trekking they can't have been trekking

Forma interrogativa

Forma simple	Forma con V-ing
can I trek? can you trek? can he trek? can we trek? can you trek? can they trek?	can I be trekking? can you be trekking? can he be trekking? can we be trekking? can you be trekking? can they be trekking?
Perfecto	Perfecto con V-ing
can I have trekked? can you have trekked? can he have trekked? can we have trekked? can you have trekked? can they have trekked?	can I have been trekking? can you have been trekking? can he have been trekking? can we have been trekking? can you have been trekking? can they have been trekking?

Forma interro-negativa

Forma simple	Forma con V-ing
can't I trek? can't you trek? can't he trek? can't we trek? can't you trek? can't they trek?	can't I be trekking? can't you be trekking? can't he be trekking? can't we be trekking? can't you be trekking? can't they be trekking?
Perfecto	Perfecto con V-ing
can't I have trekked? can't you have trekked? can't he have trekked? can't we have trekked? can't you have trekked? can't they have trekked?	can't I have been trekking? can't you have been trekking? can't he have been trekking? can't we have been trekking? can't you have been trekking? can't they have been trekking?