Coniugazione del verbo inglese
COULD TUB

Verbo regolare: tub - tubbed - tubbed

Affermazione

Forma semplice	Forma con V-ing
I could tub you could tub she could tub we could tub you could tub they could tub	I could be tubbing you could be tubbing she could be tubbing we could be tubbing you could be tubbing they could be tubbing
Perfetto	Perfetto con V-ing
I could have tubbed you could have tubbed she could have tubbed we could have tubbed you could have tubbed they could have tubbed	I could have been tubbing you could have been tubbing she could have been tubbing we could have been tubbing you could have been tubbing they could have been tubbing

Negazione

Forma semplice	Forma con V-ing
I couldn't tub you couldn't tub she couldn't tub we couldn't tub you couldn't tub they couldn't tub	I couldn't be tubbing you couldn't be tubbing she couldn't be tubbing we couldn't be tubbing you couldn't be tubbing they couldn't be tubbing
Perfetto	Perfetto con V-ing
I couldn't have tubbed you couldn't have tubbed she couldn't have tubbed we couldn't have tubbed you couldn't have tubbed they couldn't have tubbed	I couldn't have been tubbing you couldn't have been tubbing she couldn't have been tubbing we couldn't have been tubbing you couldn't have been tubbing they couldn't have been tubbing

Forma interrogativa

Forma semplice	Forma con V-ing
could I tub? could you tub? could she tub? could we tub? could you tub? could they tub?	could I be tubbing? could you be tubbing? could she be tubbing? could we be tubbing? could you be tubbing? could they be tubbing?
Perfetto	Perfetto con V-ing
could I have tubbed? could you have tubbed? could she have tubbed? could we have tubbed? could you have tubbed? could they have tubbed?	could I have been tubbing? could you have been tubbing? could she have been tubbing? could we have been tubbing? could you have been tubbing? could they have been tubbing?

Forma interro-negativa

Forma semplice	Forma con V-ing
couldn't I tub? couldn't you tub? couldn't she tub? couldn't we tub? couldn't you tub? couldn't they tub?	couldn't I be tubbing? couldn't you be tubbing? couldn't she be tubbing? couldn't we be tubbing? couldn't you be tubbing? couldn't they be tubbing?
Perfetto	Perfetto con V-ing
couldn't I have tubbed? couldn't you have tubbed? couldn't she have tubbed? couldn't we have tubbed? couldn't you have tubbed? couldn't they have tubbed?	couldn't I have been tubbing? couldn't you have been tubbing? couldn't she have been tubbing? couldn't we have been tubbing? couldn't you have been tubbing? couldn't they have been tubbing?