English verb conjugation
COULD STRIATE

Regular verb: striate - striated - striated

Affirmation

Simple form	V-ing form
I could striate you could striate he could striate we could striate you could striate they could striate	I could be striating you could be striating he could be striating we could be striating you could be striating they could be striating
Perfect	V-ing perfect
I could have striated you could have striated he could have striated we could have striated you could have striated they could have striated	I could have been striating you could have been striating he could have been striating we could have been striating you could have been striating they could have been striating

Negation

Simple form	V-ing form
I couldn't striate you couldn't striate he couldn't striate we couldn't striate you couldn't striate they couldn't striate	I couldn't be striating you couldn't be striating he couldn't be striating we couldn't be striating you couldn't be striating they couldn't be striating
Perfect	V-ing perfect
I couldn't have striated you couldn't have striated he couldn't have striated we couldn't have striated you couldn't have striated they couldn't have striated	I couldn't have been striating you couldn't have been striating he couldn't have been striating we couldn't have been striating you couldn't have been striating they couldn't have been striating

Interrogative form

Simple form	V-ing form
could I striate? could you striate? could he striate? could we striate? could you striate? could they striate?	could I be striating? could you be striating? could he be striating? could we be striating? could you be striating? could they be striating?
Perfect	V-ing perfect
could I have striated? could you have striated? could he have striated? could we have striated? could you have striated? could they have striated?	could I have been striating? could you have been striating? could he have been striating? could we have been striating? could you have been striating? could they have been striating?

Interro-negative form

Simple form	V-ing form
couldn't I striate? couldn't you striate? couldn't he striate? couldn't we striate? couldn't you striate? couldn't they striate?	couldn't I be striating? couldn't you be striating? couldn't he be striating? couldn't we be striating? couldn't you be striating? couldn't they be striating?
Perfect	V-ing perfect
couldn't I have striated? couldn't you have striated? couldn't he have striated? couldn't we have striated? couldn't you have striated? couldn't they have striated?	couldn't I have been striating? couldn't you have been striating? couldn't he have been striating? couldn't we have been striating? couldn't you have been striating? couldn't they have been striating?