I could transpire you could transpire he could transpire we could transpire you could transpire they could transpire
V-ing form
I could be transpiring you could be transpiring he could be transpiring we could be transpiring you could be transpiring they could be transpiring
Perfect
I could have transpired you could have transpired he could have transpired we could have transpired you could have transpired they could have transpired
V-ing perfect
I could have been transpiring you could have been transpiring he could have been transpiring we could have been transpiring you could have been transpiring they could have been transpiring
Negation
Simple form
I couldn't transpire you couldn't transpire he couldn't transpire we couldn't transpire you couldn't transpire they couldn't transpire
V-ing form
I couldn't be transpiring you couldn't be transpiring he couldn't be transpiring we couldn't be transpiring you couldn't be transpiring they couldn't be transpiring
Perfect
I couldn't have transpired you couldn't have transpired he couldn't have transpired we couldn't have transpired you couldn't have transpired they couldn't have transpired
V-ing perfect
I couldn't have been transpiring you couldn't have been transpiring he couldn't have been transpiring we couldn't have been transpiring you couldn't have been transpiring they couldn't have been transpiring
Interrogative form
Simple form
could I transpire? could you transpire? could he transpire? could we transpire? could you transpire? could they transpire?
V-ing form
could I be transpiring? could you be transpiring? could he be transpiring? could we be transpiring? could you be transpiring? could they be transpiring?
Perfect
could I have transpired? could you have transpired? could he have transpired? could we have transpired? could you have transpired? could they have transpired?
V-ing perfect
could I have been transpiring? could you have been transpiring? could he have been transpiring? could we have been transpiring? could you have been transpiring? could they have been transpiring?
Interro-negative form
Simple form
couldn't I transpire? couldn't you transpire? couldn't he transpire? couldn't we transpire? couldn't you transpire? couldn't they transpire?
V-ing form
couldn't I be transpiring? couldn't you be transpiring? couldn't he be transpiring? couldn't we be transpiring? couldn't you be transpiring? couldn't they be transpiring?
Perfect
couldn't I have transpired? couldn't you have transpired? couldn't he have transpired? couldn't we have transpired? couldn't you have transpired? couldn't they have transpired?
V-ing perfect
couldn't I have been transpiring? couldn't you have been transpiring? couldn't he have been transpiring? couldn't we have been transpiring? couldn't you have been transpiring? couldn't they have been transpiring?