English verb conjugation
COULD TENIR

Regular verb: tenir - tenired - tenired

Warning, this verb may not exist. Conjugation is given as example.

Affirmation

Simple form	V-ing form
I could tenir you could tenir he could tenir we could tenir you could tenir they could tenir	I could be teniring you could be teniring he could be teniring we could be teniring you could be teniring they could be teniring
Perfect	V-ing perfect
I could have tenired you could have tenired he could have tenired we could have tenired you could have tenired they could have tenired	I could have been teniring you could have been teniring he could have been teniring we could have been teniring you could have been teniring they could have been teniring

Negation

Simple form	V-ing form
I couldn't tenir you couldn't tenir he couldn't tenir we couldn't tenir you couldn't tenir they couldn't tenir	I couldn't be teniring you couldn't be teniring he couldn't be teniring we couldn't be teniring you couldn't be teniring they couldn't be teniring
Perfect	V-ing perfect
I couldn't have tenired you couldn't have tenired he couldn't have tenired we couldn't have tenired you couldn't have tenired they couldn't have tenired	I couldn't have been teniring you couldn't have been teniring he couldn't have been teniring we couldn't have been teniring you couldn't have been teniring they couldn't have been teniring

Interrogative form

Simple form	V-ing form
could I tenir? could you tenir? could he tenir? could we tenir? could you tenir? could they tenir?	could I be teniring? could you be teniring? could he be teniring? could we be teniring? could you be teniring? could they be teniring?
Perfect	V-ing perfect
could I have tenired? could you have tenired? could he have tenired? could we have tenired? could you have tenired? could they have tenired?	could I have been teniring? could you have been teniring? could he have been teniring? could we have been teniring? could you have been teniring? could they have been teniring?

Interro-negative form

Simple form	V-ing form
couldn't I tenir? couldn't you tenir? couldn't he tenir? couldn't we tenir? couldn't you tenir? couldn't they tenir?	couldn't I be teniring? couldn't you be teniring? couldn't he be teniring? couldn't we be teniring? couldn't you be teniring? couldn't they be teniring?
Perfect	V-ing perfect
couldn't I have tenired? couldn't you have tenired? couldn't he have tenired? couldn't we have tenired? couldn't you have tenired? couldn't they have tenired?	couldn't I have been teniring? couldn't you have been teniring? couldn't he have been teniring? couldn't we have been teniring? couldn't you have been teniring? couldn't they have been teniring?