Observe the change in meaning by varying the stress.
But not only by the ear, record your imitation and let yourself decide when you already say it.
By clicking on the buttons you can see the profile of what it says, record and compare, using Praat.

• Select the box next to "Keep" so that they are kept for the number of times you select in the box next to it.
• With the orange buttons you can hear the associated pronunciation.
• With the buttons you can watch videos of YouGlish.com Remember the facilities that it offers you.
• With links to Merriam-Webster's and SpanishDict you can verify the words.